What causes tenosynovitis?

Tenosynovitis refers to an acute or chronic inflammatory response to the tendon sheath. It has many causes and may be related to posture problems, overstrain, trauma, infection and other factors.

1. Posture problems: Bad posture or maintaining the same posture for a long time will increase the risk of tenosynovitis. If the wrist is kept in an incorrect position for a long time, it will increase the risk of wrist tenosynovitis.

2. Overstrain: Long-term flexion, extension and rotation activities, especially overuse of a certain muscle or joint, will cause excessive wear and friction of the muscles, ligaments or tendons in that area. For example, excessive finger work, frequent flexion and extension, and accumulated strain will cause the flexor tendons to be repeatedly rubbed and squeezed in the bony fiber tube, thus causing tenosynovitis.

3. Trauma: Trauma can also lead to tendon damage and tenosynovitis. For example, an accidental fall or collision may cause fractures or contusions, especially damage to the bone joint surface, destruction of cartilage, tendons and other tissues, which can induce traumatic tenosynovitis.

4. Infection: Bacterial infection is also a cause of tenosynovitis. This usually occurs at the site of a wound or surgical incision, but it may also spread to other parts of the body through blood circulation. Bacterial infections such as Staphylococcus and Escherichia coli may cause tenosynovitis, with local symptoms of redness, swelling, and pain.

5. Other factors: If the fingers are exposed to cold stimulation, they are also prone to tenosynovitis, because the local blood vessels and meridians are blocked after being exposed to cold, which will lead to inflammation. At the same time, with age, muscles, ligaments and tendon sheaths will naturally become more fragile and prone to injury, thereby increasing the risk of tenosynovitis.

Note: In daily life, you should pay attention to maintaining good posture and habits, avoid repeating certain movements for a long time, keep warm, and actively treat related diseases to prevent the occurrence of tenosynovitis. If tenosynovitis has occurred, you need to see a doctor as soon as possible and seek help from a professional doctor.