[ad_1] Metacarpophalangeal joint pain can be caused by arthritis, trauma, bone cysts, gout, and other underlying conditions. Rheumatoid arthritis is the most common cause, while osteoarthritis and post-traumatic arthritis are also common. Repetitive use and trauma can also cause pain, as can gout and psoriasis. Cysts, such as bone cysts, ganglion cysts, and dermoid cysts, […]