Blood seepage from the wound after kidney tumor surgery is mainly caused by wound not healed or infection, it is recommended to take good care of the wound and take antibiotic drugs if there is infection. 1. Wound not healed: Kidney is rich in blood vessels, during kidney tumor surgery, blood vessels and subcutaneous tissues will be damaged so that blood seepage occurs, a small amount of blood seepage within one week after surgery is a normal phenomenon, if more than one week the wound is still seeping blood, it is recommended to go to the hospital to check whether there is wound rupture and carry out the treatment of hemostasis. 2. Infection: Inadequate postoperative care can cause wound infection, redness, swelling, heat and pain as well as blood seepage. Antibiotics can be taken under doctor’s guidance, such as penicillin, cephalosporin or quinolone antibiotics, and it is better to do bacterial culture and drug sensitivity test to target the use of drugs. It is advisable to do bacterial culture and drug sensitivity test to target the use of drugs. It is recommended to consult a doctor in time to avoid the blind use of drugs.