Compression of the ulnar nerve is what causes ulnar nerve entrapment pain; however, several potential factors can lead to this compression. These may include the following:
Pressure
Direct pressure on the ulnar nerve can result from consistently leaning on the elbow, leading to irritation and compression. This is particularly common in people who spend extended periods sitting at a desk or using a computer.
Injury
Injuries to the elbow, wrist, or arm can also lead to ulnar nerve entrapment pain. These injuries can result from accidents or repetitive strain caused by activities such as sports or manual labor. When such an injury occurs, there is an increased risk of damage to the ulnar nerve, causing inflammation and compression.
Repetitive Motion
Repetitive movements such as playing certain musical instruments or typing can lead to ulnar nerve entrapment pain. These activities put constant pressure on the nerve by bending and straightening the elbow repeatedly, which can eventually lead to irritation and compression.
Bone Spurs Or Arthritis
In some cases, bone spurs or arthritis may be the underlying cause of ulnar nerve entrapment. Bone spurs, in particular, can narrow the space through which the nerve passes, leading to irritation and compression. Arthritis can cause inflammation and swelling, which can also put pressure on the nerve.
