Triceps Tendonitis: Why Your Arm Pain Isn’t Going Away

KEY TAKEAWAYS

• Triceps tendonitis (more accurately called triceps tendinopathy in the chronic stage) is an overuse irritation of the tendon that connects the triceps muscle to the back of the elbow.
• The pain often persists when load and recovery are out of balance, when the surrounding kinetic chain has not been addressed, or when the original diagnosis was incomplete.
• True triceps tendon ruptures are uncommon but they do occur. Sudden pop, immediate bruising, a visible gap above the elbow, or inability to actively straighten the arm against gravity are red flags that warrant prompt medical evaluation.
• The evidence-based treatment pattern is progressive loading (with eccentric and isometric strengthening), targeted manual therapy, and, in stubborn cases, shockwave therapy. Cortisone injections directly into the triceps tendon are generally avoided because of the rupture risk.
• A typical course of shockwave therapy is 4 to 6 weekly sessions paired with progressive loading, with most of the benefit continuing to build over the 4 to 12 weeks after the last session.
• Triceps tendinopathy specifically has limited primary research, and most of the elbow-tendon evidence base sits in lateral and medial epicondylopathy. Clinicians extrapolate carefully.

IN THIS ARTICLE

• What triceps tendonitis is, and why the pain lingers
• How to tell triceps tendonitis from a partial or complete tear
• What the research actually says about treatment
• How treatment works at Unpain Clinic
• What to do at home between visits
• When to skip rehabilitation and see a physician
• FAQ

INTRODUCTION

Triceps tendonitis is one of those injuries that does not always behave the way you expect. The pain is at the back of the elbow, sharper when you straighten the arm against resistance, and worse the day after a heavy push session. A few weeks of rest often calms it down, but it comes back as soon as you load the arm again. That cycle is the most common version of stuck triceps tendon pain, and it usually has a story behind it: load and recovery out of balance, surrounding muscles not pulling their weight, or a partial tear that has not been ruled out. This article walks through the realistic picture, what the published evidence actually supports, and where shockwave therapy and structured rehabilitation fit in.

This is general education, not individual medical advice. If your arm pain is severe, sudden, or accompanied by bruising or visible deformity at the back of the arm, treat it as a possible tendon tear and get a proper assessment before continuing.

WHAT IS TRICEPS TENDONITIS, AND WHY DOES THE PAIN LINGER?

The triceps muscle on the back of the upper arm joins together into a single tendon that attaches to the olecranon, the bony tip of the elbow. The tendon's job is to straighten the elbow against load: pushing a heavy door, locking out a bench press, pushing yourself up from a chair, or driving a throw. When the tendon is repeatedly loaded beyond what it has been conditioned for, it develops microscopic damage in its collagen fibers. In the acute phase, this is irritation and inflammation (tendonitis). In the chronic phase, weeks to months in, the picture is more about disorganized collagen and impaired healing (tendinopathy or tendinosis). The two terms describe a continuum, not two different diseases.

The risk pattern is recognizable. Weightlifting (especially heavy pressing, dips, and dedicated triceps work), throwing sports, repetitive manual work, and a sudden jump in training load all sit at the front of the list. Tendons adapt to load, but they adapt slowly, and abruptly asking a tendon for more than it has been gradually prepared for is the most common way to set the cycle in motion.

The pain often persists for a few specific reasons.

The first is the same load-to-recovery imbalance that started it. If the tendon was overloaded once and only partially healed, returning to the same loading pattern restarts the cycle. Tendons heal more slowly than muscle does, and a week or two of feeling better is not the same thing as being fully recovered.

The second is the surrounding kinetic chain. Weak shoulder stabilizers, poor scapular control, tight forearm muscles, and stiff thoracic mobility can all transfer extra load to the triceps tendon during pressing. If only the tendon is treated and the upstream and downstream pattern is left alone, the tendon stays vulnerable.

The third is incomplete diagnosis. "Tendonitis" is a busy term. Posterior elbow pain can also come from olecranon bursitis, a stress reaction at the olecranon, posterior impingement, or a partial tear of the triceps tendon. The 2014 review by Donaldson and colleagues in Shoulder & Elbow on tendinopathies around the elbow (covering medial elbow, distal biceps, and distal triceps) notes that distal triceps tendinopathy is rare and that the published evidence base on it is limited. Clinically, that means a proper assessment matters: not every "triceps tendonitis" is what it looks like at first glance, and ruling out competing diagnoses is part of getting the plan right.

The fourth is the nervous system. After months of pain, the nerves that report from the area can become more sensitive than the tissue damage alone would predict. The tendon may have begun to heal while the nervous system is still amplifying the signal. This is a real phenomenon (sometimes called central sensitization), and it usually responds to a combination of progressive loading, pain education, and the kind of treatment that reassures the system that the tissue is safe to use again.

TRICEPS TENDONITIS OR A TENDON TEAR? HOW TO TELL THEM APART

Distinguishing tendonitis from a partial or complete tear is one of the most important calls in this category, because the management differs.

The tendonitis or tendinopathy pattern usually develops gradually. The pain builds over weeks. There is tenderness at the back of the elbow where the tendon attaches. Pushing or straightening the arm against resistance reproduces the pain. Strength is generally preserved on a careful test, though strength testing may hurt. The arm can be straightened actively, even if it is uncomfortable. There is no visible gap or deformity at the back of the upper arm.

A partial or complete tear pattern is different. A complete rupture usually has a clear injury moment: a heavy load, a fall, or a sudden eccentric overload. There is often an audible or felt pop. Immediate swelling and bruising at the back of the elbow are typical. With a complete rupture, you cannot actively straighten the elbow against gravity (the arm "gives way" because the connection between muscle and bone is broken). There is sometimes a palpable gap or a visible indentation just above the elbow where the tendon used to attach. Partial tears sit in between: real pain, real weakness, sometimes a tearing sensation, but some preserved ability to extend the arm.

Most posterior elbow pain in active adults is tendinopathy and not a tear, and the Donaldson review notes that complete distal triceps ruptures are rare. But complete and high-grade partial tears are real, they generally require imaging (ultrasound or MRI) to confirm, and they often need a surgical opinion. If your pain came on suddenly with a pop, with bruising, or with a clear loss of the ability to straighten the arm, see a physician or sports medicine clinician before doing rehabilitation work.

WHAT DOES THE RESEARCH ACTUALLY SAY ABOUT TREATMENT?

The honest framing is that triceps tendinopathy specifically has limited primary research. Most of what we know comes from the broader elbow-tendinopathy literature (especially lateral and medial epicondylopathy) and from the general tendinopathy evidence base. Clinicians extrapolate carefully.

A few patterns are well-supported.

Progressive loading is the backbone of tendinopathy rehabilitation. Isometric contractions (holding the muscle at length under load without joint movement) help reduce pain in the early phase. Heavy slow resistance and eccentric loading (slowly lowering a controlled load) help remodel the tendon and rebuild capacity over the weeks and months that follow. Generic stretching alone does not improve outcomes once tendinopathy is established. Across the tendinopathy literature, the principle is consistent: do less than what flares it, but do more than complete rest, and progress gradually.

Steroid (cortisone) injections directly into a triceps tendon are generally avoided. The Donaldson review and the broader sports medicine literature flag rupture risk as a real concern with steroid injection into load-bearing tendons. Steroid injections may give short-term pain relief, but the trade-off in this specific tendon is not favorable. Decisions about injections belong with your sports medicine or orthopedic physician, not with a rehabilitation clinic.

Shockwave therapy has a growing evidence base for chronic elbow and shoulder tendinopathies. The 2018 study by Dedes and colleagues in Materia Socio-Medica examined shockwave therapy across 384 patients with various tendinopathies (including lateral epicondylitis at the elbow, rotator cuff tendinopathy, Achilles tendinopathy, and plantar fasciitis). The shockwave groups reported significantly greater improvements in pain, function, and quality of life than control groups, with the gains holding at four-week follow-up. The trial did not specifically include triceps tendinopathy, so this is supporting rather than direct evidence.

The closest direct evidence at the elbow comes from lateral elbow tendinopathy. The 2021 systematic review and meta-analysis by Karanasios and colleagues in Clinical Rehabilitation examined shockwave therapy for lateral elbow tendinopathy and found that ESWT reduced pain and improved function compared with control treatments, with a favorable safety profile. Lateral and posterior elbow tendons are not the same structure, but the evidence supports the broader idea that shockwave is a reasonable adjunct to loading-based rehabilitation in chronic elbow tendinopathies that have not responded to standard care.

The honest framing for triceps tendinopathy specifically is this. There is good biological rationale and growing supporting evidence (from neighboring tendons) for shockwave therapy as an adjunct, but no published high-quality randomized trial specifically on triceps tendinopathy. In our clinic, shockwave is one of the tools we layer on top of progressive loading and address-the-whole-arm rehabilitation, not a stand-alone treatment.

"Tendons heal. They just heal slowly, and they do it under the right amount of load. Most of the work is in finding that amount and adjusting it as the tendon recovers." Uran Berisha, PT, RMT, Founder of Unpain Clinic

HOW DOES TREATMENT FOR TRICEPS TENDONITIS WORK AT UNPAIN CLINIC?

At Unpain Clinic in Edmonton, treatment for triceps tendonitis sits inside a structured assessment-and-plan process. The first visit is an assessment, not a treatment session, because the right plan depends on what is actually driving the pain in your specific case.

A typical first appointment includes a full history of how the pain started, what aggravates and eases it, what loading you have been doing, what treatments you have tried, and what you actually want to get back to. Movement testing covers the shoulder, scapula, elbow, and forearm, because triceps tendon overload often has an upstream component. Orthopedic and neurological testing of the elbow rules out partial tear, bursitis, and nerve-related pain. Strength testing of elbow extension under different angles tells us how reactive the tendon is.

If a partial tear or other competing diagnosis is suspected and imaging would change the plan, we coordinate with your family physician or sports medicine physician to obtain it. We do not treat a suspected tear in the rehabilitation room without a physician's input.

From there, the toolbox we draw on is built around what the evidence supports for chronic tendinopathy.

• Physiotherapy with progressive loading is the backbone of every plan. Isometric elbow extension holds in the early phase to settle pain. Heavy slow resistance and eccentric triceps work as the tendon tolerates it. Shoulder, scapular, and thoracic mobility and stability work to take load off the elbow. A paced return to your specific sport or activity, with form coaching where it matters.
• Focused shockwave therapy is used as an adjunct in cases that have not responded to a fair trial of progressive loading. Focused shockwave reaches the deeper portion of the tendon and is most relevant for chronic tendinopathy with stubborn local pain.
• Radial shockwave therapy is layered in for more superficial trigger points and tight tissue in the triceps muscle belly and surrounding posterior arm.
• EMTT therapy is selectively used in long-standing cases where deep inflammation and sensitization are part of the picture. It is painless and pairs well with shockwave.
• NESA neuromodulation is reserved for cases where the nervous system has become hypersensitive and pain has started to outlast what the tendon and load findings would predict.
• Massage therapy supports the broader picture by addressing secondary tension in the triceps belly, posterior shoulder, and forearm while the tendon is rehabilitating.

For deeper looks at other elbow conditions, our cluster also includes shockwave therapy for elbow pain and elbow pain explained: from overuse to injury, which cover the broader elbow tendinopathy picture. Our guide to golfer's elbow covers the medial epicondyle pattern specifically.

WHAT TO REALISTICALLY EXPECT: SESSIONS, TIMELINES, RESULTS

A typical course of shockwave therapy for chronic triceps tendinopathy is 4 to 6 weekly sessions, layered on top of progressive loading work that continues at home between visits. Each shockwave session takes a few minutes of actual application over the painful portion of the tendon.

The sensation during treatment is best described as a strong tapping or pulsing pressure. Discomfort is adjustable in real time, and the sensation stops as soon as the device is off. Mild soreness for a day or two in the treated area is common.

The pattern of improvement is rarely dramatic in the first session. Many people notice the first shifts after 2 or 3 sessions, often as a reduction in the morning ache or improved tolerance for pressing movements. The bigger changes tend to build over the 4 to 12 weeks after the last session as the tendon remodels under loading work.

Tendon recovery is measured in months, not weeks. Mild cases may settle in 4 to 6 weeks of consistent rehabilitation. More established cases often take 8 to 16 weeks. Returning to heavy pressing or sport-level loading is typically the last step, and it pays to rebuild that capacity gradually rather than test it at full intensity too early. The most common avoidable cause of relapse is returning to peak loading at the first feeling of being better, before the tendon has actually been progressively reloaded back to that demand.

WHAT CAN I SAFELY DO AT HOME BETWEEN VISITS?

This is general education, not individual medical advice. Results vary. The principles below assume you have been cleared by a clinician and that a partial tear has been ruled out.

1. Use relative rest, not complete rest. Step back from the specific movements that flare the pain (heavy pressing, dips, dedicated triceps work) for a few weeks while the tendon settles. Keep using the arm for daily activities and pain-free training (legs, core, light upper body that does not load the tendon).
2. Use ice and topical anti-inflammatories in the acute phase. Ten to fifteen minutes of ice over the painful area, a couple of times a day in the first week or two, can take the edge off. Topical anti-inflammatory gels can help locally with fewer systemic effects than oral medications. Oral NSAIDs are short-term symptom management at best and belong in a conversation with your physician.
3. Start with isometric elbow extension holds. With the elbow slightly bent and the hand pressing into a wall, push gently as if straightening the arm against the wall (without actually moving the elbow). Hold for 30 to 45 seconds at a moderate effort, repeat 4 to 5 times, once or twice a day. Isometrics often reduce pain on their own and are a safe starting load.
4. Progress to slow eccentric triceps work as tolerated. A light dumbbell overhead triceps extension where you lower the weight slowly (3 to 4 seconds down, helping the weight back up with the other arm if needed) is a useful next step. Stay in the mild-discomfort range, not the sharp-pain range. Two or three sets of 8 to 12 repetitions, two or three times a week, is a reasonable starting point.
5. Build the surrounding cast. Scapular control work (rows, scapular retractions, prone Ys and Ts), shoulder external rotation strengthening, thoracic mobility, and forearm flexibility all take load off the triceps tendon during pressing. Strong shoulders protect the elbow more reliably than any single exercise aimed at the elbow itself.
6. Adjust your form on the lifts that hurt. Slightly narrower or slightly wider grip on pressing, less aggressive lockout, less depth on dips, less weight on triceps isolation work. Form changes matter more than gear changes.
7. Resist the urge to test the tendon with heavy loading before it is ready. The single most common reason for a relapse is going back to a peak load at the first feeling of normal, before the tendon has been progressively reloaded back to that demand.
8. Keep general fitness up with low-impact, low-load options. Cycling, walking, jogging, lower-body work, and light upper-body movements that do not load the triceps tendon all preserve fitness while the tendon recovers.

WHEN SHOULD I SEE A PHYSICIAN INSTEAD OF (OR ALONGSIDE) REHABILITATION?

The following are not "wait and see" situations. Contact your physician promptly, or seek emergency care if symptoms are severe.

• A clear pop, snap, or tearing sensation at the back of the arm with a heavy load or fall.
• Inability to actively straighten the elbow against gravity.
• A visible indentation, gap, or deformity at the back of the upper arm above the elbow.
• Significant bruising or swelling at the back of the elbow after an injury, particularly with sudden onset.
• Numbness, tingling, or weakness traveling down the forearm or into the hand.
• Fever, warmth, or redness around the elbow, especially with significant swelling (possible joint or bursa infection).
• Severe pain that does not respond to reasonable rest, ice, and short-term analgesia.
• Pain that has not improved at all after 4 to 6 weeks of appropriate rest and a sensible rehabilitation effort.

FREQUENTLY ASKED QUESTIONS

What are the symptoms of triceps tendonitis?

The hallmark is pain at the back of the elbow, where the triceps tendon attaches to the olecranon. The pain is usually worse with pushing or straightening the arm against resistance, such as bench pressing, dips, push-ups, or pushing yourself up out of a chair. There is often tenderness when you press on the tendon, mild stiffness, and sometimes a feeling of weakness with loaded movements. Strength is generally preserved on careful testing, even if testing reproduces the pain.

Can triceps tendonitis cause forearm pain?

Triceps tendonitis primarily causes pain at the back of the elbow. Forearm pain is not a typical primary symptom, but it can appear secondarily for two reasons. The first is compensation: when the triceps is sore, you may unconsciously rely more on forearm muscles for tasks that the triceps would normally drive, which can fatigue the forearm. The second is that surrounding tightness and tender points can refer down the back of the forearm. If forearm pain is a major feature of your picture, a proper assessment is the right next step because a different diagnosis (radial-nerve-related pain, lateral epicondylopathy, or a forearm tendinopathy) may be in play.

How can I tell triceps tendonitis from a triceps tendon tear?

Tendonitis usually develops gradually over weeks, with pain on loading and preserved active extension of the elbow. A tear typically has a clear injury moment, often with a pop, immediate bruising, and a loss of the ability to actively straighten the arm against gravity. A complete rupture also tends to show a visible indentation just above the elbow where the tendon used to attach. The two are managed differently, so if you suspect a tear, see a physician for imaging before continuing with rehabilitation.

How long does it take to heal triceps tendonitis?

Tendon recovery takes longer than people expect. Mild cases may settle in 4 to 6 weeks of consistent rehabilitation. More established cases often take 8 to 16 weeks. A full return to heavy pressing or sport-level loading is typically the last step. Going back to peak load before the tendon has been progressively reloaded back to that demand is the most common avoidable cause of relapse.

Does shockwave therapy hurt, and is it safe for triceps tendonitis?

The treatment is generally well-tolerated. Most people describe a strong tapping or pulsing pressure on the area, and the intensity is adjustable in real time. Mild soreness in the treated area for a day or two afterward is common. Serious adverse effects are rare in the published literature for tendon-focused shockwave when delivered by a trained clinician with proper screening. Shockwave is avoided over active infections, malignancies in the treatment area, certain implanted devices in the field, during pregnancy, and over major nerves and vessels.

Should I get a cortisone injection for triceps tendonitis?

Cortisone injections directly into a load-bearing tendon like the triceps are generally avoided because of the rupture risk associated with steroid injection into this tendon specifically. Cortisone may give short-term pain relief, but the trade-off in this location is not favorable. The decision about whether and where to inject belongs with your sports medicine or orthopedic physician. We do not provide injections and we do not push for them.

Do I need a doctor's referral to come to Unpain Clinic?

No referral is needed. Physiotherapists and chiropractors in Alberta practice as primary contact clinicians and can assess and treat triceps tendonitis directly. Some insurance plans require a physician's note for reimbursement, so check your plan if you intend to claim. If our assessment turns up something that needs a physician's involvement (a suspected tear, suspected fracture, a neurological pattern), we coordinate that referral.

Is shockwave therapy covered by insurance?

Coverage depends on your insurer and plan. Many extended health plans reimburse shockwave under physiotherapy or chiropractic categories when it is provided by a licensed clinician. Public provincial health insurance does not typically cover it. Confirm with your plan, and a Health Spending Account through your employer can usually be used as well.

ABOUT THE AUTHOR

Written by Uran Berisha, Founder of Unpain Clinic and Medical Shockwave Institute. Uran has Bachelor of Science in Physiotherapy and is an International Educator in Shockwave Therapy.

BOOK YOUR INITIAL ASSESSMENT

If your triceps tendon pain has not budged after rest, generic exercises, and basic care, the next step is a proper assessment. We will look at the whole arm and the surrounding kinetic chain, rule out anything that needs a physician's attention first (particularly a partial tear), and tell you honestly which tools fit your case. No referral needed. No long contracts. Book your initial assessment with Unpain Clinic.

REFERENCES

1. Donaldson O, Vannet N, Gosens T, Kulkarni R. Tendinopathies Around the Elbow Part 2: Medial Elbow, Distal Biceps and Triceps Tendinopathies. Shoulder & Elbow. 2014;6(1):47-56. https://pubmed.ncbi.nlm.nih.gov/27582910/
2. Dedes V, Stergioulas A, Kipreos G, Dede AM, Mitseas A, Panoutsopoulos GI. Effectiveness and Safety of Shockwave Therapy in Tendinopathies. Materia Socio-Medica. 2018;30(2):131-146. https://pubmed.ncbi.nlm.nih.gov/30061805/
3. Karanasios S, Tsamasiotis GK, Michopoulos K, Korakakis V, Moutzouri M, Gioftsos G. Clinical effectiveness of shockwave therapy in lateral elbow tendinopathy: systematic review and meta-analysis. Clinical Rehabilitation. 2021;35(10):1383-1398. https://journals.sagepub.com/doi/abs/10.1177/02692155211006860