Olecranon bursitis also known as student elbow is a condition in which there is pain, redness, swelling around the olecranon due to inflammation of the elbow bursa. The bursa is located on the extensor surface near the extreme proximal end of ulna.
CAUSES: It is usually caused by trauma to to the elbow like a hard blow to the elbow or repeated minor injuries to the elbow for example while studying. Due to the injury the bursa starts producing larger amount of fluid than normal exceeding the normal rate and gets accumulated in the bursa leading to swelling and pain.
Infection of bursa is also one of the cause.
TREATMENT: Usually the 1st treatment is rest and avoiding further injuries to the elbow.
Aspiration of the fluid and injecting steroid into the bursa to reduce inflammation is also one of the practices.
Antibiotics can be prescribed if inection is suspected.
Surgical resection of bursa can also be done if medical management fails.
Here is a video by Dr Vikram Singh Yadav of aspiration and steroid injection into the bursa.