Drainage of fluid after lymphangioma surgery may range from 1 to 2 weeks to 1 to 2 months, depending on your condition. How long it takes to drain fluid after lymphangioma surgery generally depends on the size of the surgical wound, as well as the degree of lymphatic vessel destruction and the patient’s physical condition. If the surgical wound is large, the local healing will be slower and the drainage of lymphatic fluid will take longer. If the local wound is small, it may heal in a shorter time and there will be no lymphatic fluid outflow, and if the patient’s physical condition is poor, the wound will heal slowly and the drainage of lymphatic fluid will take longer. After lymphangioma surgery, you need to pay attention to not eating for 6~8 hours, you also need to keep clean, avoid co-infection, and usually pay more attention to regular checkups. If there is any discomfort, consult a doctor in time.