The most common causes of bulging and bending of the ring and little fingers are tendon cysts, rheumatoid arthritis, trauma and other causes.
1. Tendon sheath cysts: these are benign swellings in the small joints or tendon areas of the human body, usually associated with chronic strain and degenerative changes in connective tissues, and can be manifested by bulging and bending of the ring finger and little finger.
2. Rheumatoid arthritis: it is an autoimmune disease, with the progression of the disease may appear joint pain, swelling and deformity, also can show the ring finger and little finger bulge and deformation.
3. Trauma: If the patient’s ring finger and little finger have been fractured or traumatized, the damaged tissues may appear bulging and bending if they are not treated in time.
There are many reasons for the bulging and bending of the ring finger and little finger, and they may be related to local infections and osteophytes, etc. If the discomfort persists, the patient should go to the hospital in time to find out the cause of the disease and carry out targeted treatment.