Hand three stitches now swollen need to be treated according to the situation, generally may be the wound tissue fluid infiltration, sutures too tight, wound infection and other reasons, to take the treatment includes conservative, drug therapy, and so on. 1. Wound tissue fluid infiltration: hand injury wound blood, tissue fluid leakage, resulting in swelling of the hand, you can not stimulate the wound under the premise of moving the fingers and massage the distal wound, to promote reflux. 2. Suture is too tight: when sewing the wound, due to the suture pulling too tight, causing poor blood circulation, swelling of the hand, the anterior part of the fingertips may be bruised, blackened, then need to remove the suture. 3. Wound infection: this kind of situation is more common, due to the contamination of the wound failed to achieve thorough sterilization through debridement, local infection leads to swelling of the hand, this time you need to take anti-inflammatory drugs such as cephradine, cefuroxime and so on. If the above symptoms continue for a period of time and still do not see good, it is recommended to go to the hospital in a timely manner.