Tennis and golfer's elbow: the usual causesStrong evidence
Tennis elbow causes pain on the outside of the elbow, from mild discomfort to constant pain that can affect sleep, and it's worse "lifting or bending your arm; gripping objects; moving your wrist", the NHS says. It comes from gripping and repeatedly twisting the wrist and forearm, mostly between 35 and 54, and NHS inform lists gripping, lifting, pulling and twisting among the activities that bring it on. Golfer's elbow is the same kind of problem on the inside of the elbow.
"Despite their names, playing tennis or golf aren't the most common causes", Arthritis UK says: gripping and twisting at work (carpenters, plasterers, using a mouse) and "repetitive actions combined with weight, for example lifting heavy boxes" are commoner. The American Academy of Orthopaedic Surgeons lists painters, plumbers, carpenters, cooks and butchers. In a Finnish population study of 4,783 adults aged 30 to 64, 1.3% had tennis elbow at the time and 0.4% golfer's elbow, most often at 45 to 54, in men and women alike.
Sources 1, 2, 3, 4, 5
Work, load and who gets itEmerging evidence
In the Finnish study, work that was both repetitive and forceful raised the odds of tennis elbow 5.6-fold, and smoking 3.4-fold. Across 5 studies that followed 6,922 workers, combined load on the wrist and elbow at work raised the odds of new tennis elbow 2.6-fold. A US physiotherapy guideline lists handling tools heavier than 1 kg, and lifting loads over 20 kg at least 10 times a day for many years, among the risks.
These are exposures over months and years, not a reason to fear a single lift. The Health and Safety Executive (HSE) says aches and pains in the arms are more common with repetitive work, awkward postures, sustained or excessive force and long tasks without breaks, and that people usually recover completely if the problem is recognised early and treated.
Sources 5, 6, 7, 8
A torn biceps tendonStrong evidence
The biceps tendon at the front of the elbow can tear when a heavy load forces the bent elbow straight: the American Academy of Orthopaedic Surgeons' example is grabbing a heavy box that turns out to be heavier than you expected. Often there's a pop, then severe pain that may ease after a week or two, swelling and bruising, a bulge in the upper arm, a gap at the front of the elbow, and weakness bending the elbow and turning the palm up. Arthritis UK says you may hear the tendon snap.
It's rare, affecting about 3 to 5 people per 100,000 a year, rarely women, but it's becoming more common: in Swedish men it rose from 1.6 to 10.0 per 100,000 a year between 2001 and 2016. The NHS says go to an urgent treatment centre or A&E if you've injured your arm and heard a snapping noise. Repair is ideally done within the first 2 to 3 weeks; without it, about 30 to 40% of strength is lost, mainly in turning the palm up.
Sources 9, 3, 10, 11
Other causes: the triceps, the ulnar nerve and the neckStrong evidence
A tear of the triceps tendon at the back of the elbow is very rare; it causes pain and swelling at the back of the elbow and less movement, and like a biceps tear it needs urgent care, Arthritis UK says. The ulnar nerve (the "funny bone" nerve) causes numbness and tingling in the little and ring fingers, brought on by leaning on the elbow or keeping it bent, the British Society for Surgery of the Hand says. In a trial of 70 people, 89.5% of those followed up improved within 6 months once they understood the cause and avoided the positions.
NHS inform adds that problems felt in the elbow can come from the neck, even when the neck doesn't hurt, often as pins and needles or a sharp, hot or burning pain.
Sources 3, 12, 13, 14
When a test or scan helpsEmerging evidence
A suspected biceps tear needs a same-day check. In one surgical series of 45 people, a simple test, hooking a finger under the tendon at the elbow crease, was abnormal in all 33 complete tears and normal in all 12 partial ones, which was more accurate than magnetic resonance imaging (MRI) in the same series. Imaging and a surgeon's opinion follow, because timing matters for a repair. Our tennis elbow guide covers when imaging is used for tennis elbow.
Sources 15, 9
How it usually goesStrong evidence
Tennis and golfer's elbow "can last between six months and two years. Most people get better within a year", Arthritis UK says, and 80 to 95% recover without surgery, the American Academy of Orthopaedic Surgeons says. In a trial of 198 people, most were better at a year whatever treatment they had, including waiting and seeing.
The NHS says see a GP if tennis elbow hasn't improved after at least 2 weeks of looking after it yourself, and that physiotherapy may be offered if it hasn't improved after 6 weeks; NHS inform expects a new elbow problem to begin to settle within 6 weeks. No one can promise a date.
Sources 3, 4, 16, 1, 14