Small bumps on the finger after healing can be caused by fluid retention, scar proliferation, foreign body reaction and other factors. 1. Fluid accumulation: in the healing process of the finger wound below the hand, there can be blood and tissue fluid exudation, wound stitches after healing, the local fluid absorption is incomplete may also appear bulge-like situation, manifested as a localized small bumps. 2. Keloid hyperplasia: Keloid hyperplasia can occur during the healing process of the finger stitches, and when the hyperplasia is serious, small bumps can be touched locally, and the texture is usually hard, which can affect the finger’s flexion and extension activities in severe cases. 3. Foreign body: the wound suture or tissue ligature belongs to the foreign body, can cause the local tissue foreign body rejection reaction, can appear in the local pimple-like performance. After the healing of the finger stitches, small bumps should be timely medical treatment by a specialist to be disposed of accordingly.