These bumps may initially cause tenderness, stiffness, or discomfort. Once fully developed, however, some people experience little or no pain. They may seem to “spread,” but this happens because similar changes develop independently in multiple finger joints.
Other symptoms can include swelling, reduced movement, difficulty gripping objects, and changes in finger shape. Not every lump is arthritis—some may be digital mucous cysts or other types of growths.
Rapid growth, severe pain, redness, warmth, or difficulty moving a finger should be medically evaluated. While many of these bumps are harmless, an examination can determine their actual cause and whether treatment is necessary.
