Snapping elbow syndrome, also called snapping triceps syndrome, is a rare cause of elbow pain. Because it’s uncommon, it’s often misdiagnosed and treated incorrectly — and not all elbow snapping or popping is due to it. So what is snapping elbow syndrome, and what should you do about it?
What is snapping elbow syndrome?
The elbow is a hinge joint between the upper arm (humerus) and the forearm bones (radius and ulna). The triceps has three heads — long, lateral, and medial — which usually join into a single tendon that attaches to the tip of the elbow. Some people, though, have an additional tendon slip from the medial part of the muscle.
Snapping elbow syndrome is more accurately called snapping triceps syndrome. The snapping happens as you bend the elbow: the inner part of the triceps muscle and tendon snap across the inside of the elbow. It’s more likely when there’s an extra medial triceps tendon. Repeated snapping causes inflammation inside the elbow and pain. Because the ulnar nerve runs right next to the snapping muscle, it’s often irritated too, causing pins and needles and numbness on the inner (ulnar) side of the hand, in the ring and little fingers.
How is snapping elbow syndrome diagnosed?
People typically report elbow snapping or popping, especially when bending the elbow, with pain on the inside. Symptoms of ulnar nerve irritation — pins and needles and numbness in the ring and little fingers — are often present too.
On examination, there is usually tenderness over the inner elbow, and we try to reproduce the snap with specific triceps manoeuvres. We then use dynamic ultrasound to confirm the diagnosis — it shows the snapping in real time and can reveal ulnar nerve thickening, damage, or dislocation.
It’s essential to exclude other causes of elbow snapping or clicking, such as a loose body or elbow arthritis.
Popping with elbow extension is not due to ulnar nerve dislocation or triceps snapping — those cause snapping during elbow flexion (bending). Popping when you straighten the elbow is more likely a loose body, OCD of the elbow, elbow arthritis, or elbow plica syndrome.
Snapping elbow syndrome treatment: Do you always need surgery?
We recommend a trial of conservative treatment before considering surgery.
Avoid the exercises that trigger the snapping. For weightlifting, we modify chest and closed-chain triceps exercises — closed-chain moves such as press-ups, dips, and bench press tend to provoke snapping, so we swap them for alternatives like cable overhead triceps extensions and triceps kickbacks. Stretching and soft-tissue work on the triceps can also help reduce the snapping.
When is surgery needed?
Where conservative treatment fails, surgery is often suggested. It does two things: releases the irritated ulnar nerve and moves it to the front of the inner elbow, and repositions the subluxing medial triceps. Recovery usually takes 2–3 months, and most people recover fully. Risks are rare but include infection, nerve damage, and continued snapping.
Frequently asked questions about snapping elbow syndrome
Is snapping elbow syndrome serious?
It’s not dangerous, but it shouldn’t be ignored — repeated snapping can cause inflammation and irritate the ulnar nerve, leading to pins and needles or numbness in the ring and little fingers. Early diagnosis prevents it from becoming a chronic, harder-to-treat problem.
Does snapping elbow syndrome always need surgery?
No. Many people improve with conservative treatment — avoiding the exercises that trigger the snapping, modifying triceps and chest work, and soft-tissue treatment. Surgery is reserved for cases that fail to settle, especially with persistent ulnar nerve symptoms.
What’s the difference between snapping, bending, and popping when straightening?
Snapping when you bend (flex) the elbow points to triceps snapping or ulnar nerve subluxation. Popping when you straighten (extend) the elbow points elsewhere — a loose body, OCD, arthritis, or elbow plica. The direction of the movement is a useful clue.
Why do I get pins and needles in my fingers with a snapping elbow?
Because the ulnar nerve runs right beside the snapping triceps, repeated snapping irritates it, causing pins and needles and numbness on the inner side of the hand — the ring and little fingers — similar to cubital tunnel syndrome.
How is snapping elbow syndrome diagnosed?
Mainly with dynamic ultrasound, which shows the snapping in real time and can reveal ulnar nerve thickening or dislocation, after an examination that reproduces the snapping and excludes other causes such as a loose body or arthritis.
Final word from Sport Doctor London about snapping elbow syndrome
Snapping triceps syndrome is a rare cause of elbow snapping or popping, and it’s easily misdiagnosed. See an experienced physician who can confirm the diagnosis with a dynamic ultrasound and guide the right treatment.
To book an elbow assessment with Dr Masci in London, contact the team here or call +44 (0) 203 488 0350.
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