Thumping when flexing the thumb may be a physiological cause, and is most likely caused by stenosing tenosynovitis of the thumb, and prompt medical attention and standardized treatment is recommended.
When the thumb performs extension and flexion activities, the tendon rubs in the tendon sheath at the same time. Frequent flexion and extension of the thumb will lead to repeated movement of the tendon within the tendon sheath, and over time, the tendon sheath tissue will be prone to aseptic inflammation, leading to stenosis of the tendon sheath. The ensuing pain and popping of the thumb during flexion and extension activities is called stenosing tenosynovitis.
Patients with stenosing tenosynovitis should take adequate rest. Can also be combined with hot compresses, non-steroidal anti-inflammatory drugs (such as ibuprofen), closed and other methods of treatment, for the improvement of symptoms can play a role. It is recommended to go to the regular hospital in time, after a clear examination, to take targeted treatment program. The use of drugs need to follow the doctor’s instructions.