Hello rlwbc3, I appreciate your questions! Having serosanguinous drainage is normal during the first week following VASER liposuction. Fluid may collect inside your body in the surgical area. This makes an infection or other complications more likely to occur. Surgical drains are typically placed in order to allow the fluid to flow out of your body. Usually, during the first 24-48 hours, large amount of blood-stained fluid (serosanguinous drainage) would come out of the drainage holes. This is a normal secretion due to the exit of the anesthetic solution with blood. It will change color from red to pink to a light yellow or clear as the wound heals and the fluid starts to go away. Each day, your drains will be checked to check the amount of drainage. Your doctor may give you specific information on when you no longer need the drain and when it will be removed, but generally these are removed between 4-7 days after surgery, when the drainage output is less than 30 mL/24 hrs. To avoid excessive bleeding you should rest quietly the first few days following VASER lipo and avoid taking aspirin, nonsteroidal anti-inflammatory medications (Advil, Motrin, Aleve, among others) and some herbal medicines that can cause increase bleeding. Refrain from strenuous activity for the first month after surgery and contact your surgeon promptly if you notice an increase in swelling, pain, redness, drainage, or bleeding in the surgical area, or if you develop fever (above 100.4 F), dizziness, nausea, or vomiting. Hope this is helpful! Dr. De La Cruz.