My left hand little finger is moving back away from the other fingers. my ring finger has fluid at lower knuckle. no impact what's cause?

Arthritis: See dr. There are forms of arthritis that can do this. Rheumatoid arthritis is one, where bodies immune system attacks lining of joints. Rare form that does not cause pain. Should have symptoms bilateral but not always in same joint. Do notice swelling outer aspect wrist where 5 th finger is?. Could be old injury. But condition may cause 4 & 5 finger deviate out. Consult dr.