What are the side effects of body surgery? What are some common postoperative discomforts? Nausea and vomiting from general anesthesia. Sore throat (caused by the tube placed in the windpipe for breathing during surgery) Soreness, pain, and swelling around the incision site. Restlessness and sleeplessness. Thirst. Constipation and gas (flatulence)In 2017, Americans spent more than $6.5 billion on cosmetic surgery. From breast augmentation to eyelid surgery, procedures to change our appearance are becoming increasingly common. However, these surgeries don’t come without risks. 1. Hematoma Hematoma is a pocket of blood that resembles a large, painful bruise. It occurs in 1 percent of breast augmentation procedures. It’s also the most common complication after a facelift, occurring in an average of 1 percent of patients. It occurs more commonly in males than females. Hematoma is a risk in nearly all surgeries. Treatment sometimes includes additional operations to drain the blood if the collection of blood is large or growing rapidly. This may require another procedure in the operating room and sometimes additional anesthetic.