What Causes Pain on the Side of My Index Finger?
Pain on the side of the index finger can be caused by overuse, paronychia, or tenosynovitis, among other reasons.
Overuse: Frequent movement of the index finger can lead to excessive traction on ligaments and nerves, causing them to be in a state of congestion and edema, resulting in lateral pain, mainly characterized by swelling and pain. Long-term use of the index finger can also cause symptoms due to overuse.
Paronychia: Ingrown nails or improper trimming of the nail on one side of the index finger can easily lead to paronychia. The paronychium area is constantly stimulated by the inflammatory reaction, causing damage to surrounding tissues and pain, often accompanied by redness, swelling, and pus-like discharge in the paronychium.
Tenosynovitis: Chronic overuse near the joint area of the tendon sheath can lead to sterile inflammatory reactions in the tendon sheath. Inflammatory effusion stimulates surrounding nerves, causing pain and potentially increasing skin temperature.
Besides the above reasons, it could also be due to gout, bone spurs, bone tumors, etc. Visit the orthopedic department of a hospital for diagnosis. Meanwhile, maintain good hand hygiene and care.
