Bone bumps on the thumb joint may be caused by arthritis, joint dislocation, gout and bone tumor.
1. Arthritis: rheumatic, rheumatoid and osteoarthritis diseases involving the thumb joint will cause local inflammatory reaction of the joints, which may appear as bumps on the bones of the little finger joints as well as symptoms such as swelling and pain in the joints.
2. Joint dislocation: due to trauma or congenital dislocation of the interphalangeal joints, symptoms such as bumps on the bones of the little finger joints can occur.
3. Gout: due to long-term bad habits such as drinking alcohol, high purine food intake caused by high uric acid content in the body, urate deposition in the joints of the little finger, which can cause bumps on the bones of the joints of the little finger.
4. Bone tumors: including benign bone tumors such as osteochondroma, bone malignant tumors such as osteosarcoma, etc., will cause abnormal bone proliferation, which can appear on the thumb joint bone bump.
There may also be other reasons for the bumpy bone on the little finger joint, it is recommended to go to the hospital for consultation in time, and give further treatment after clarifying the cause of the disease.