Bleeding water after removing stitches of breast surgery may be caused by wound fat liquefaction, bleeding from subcutaneous blood vessels, wound infection and other reasons. 1. Wound fat liquefaction: if the fat tissue in the wound is necrotic, the fat may be converted into fatty liquid, which may lead to bacterial infection, so the patient will have the symptom of bleeding water after removing the stitches. 2. subcutaneous tubular bleeding: when the patient’s breast surgery is ready to remove the stitches, the subcutaneous tubular tissue may be relaxed, which leads to bleeding water, the patient, if the symptoms are mild, can be taken under the guidance of the doctor to stop the bleeding of the compression. 3. Wound infection: bleeding water after the removal of stitches after breast surgery may also be caused by wound infection, the patient wound if the recovery period by bacteria, viruses invasion, may lead to the symptoms of purulent material exudation, it is recommended that patients should be disinfected in a timely manner, so as to avoid aggravation of the condition. It is recommended that the patient should go to the hospital in time for relevant treatment when the above situation occurs, so as not to affect the healing of the wound.