This is a minimally invasive procedure and it carries real risks, which your director goes through with you before you agree to anything. Bruising, swelling and tenderness across the treated belly are expected in the first days, along with patches of numbness that take time to fade. Less often, patients develop surface irregularity, a seroma, firm nodules under the skin, skin laxity, infection at the entry point, or visible asymmetry between the two flanks.
An abdomen has particular things to watch. It is a large surface, so unevenness shows more readily than it does on a limb; both sides of the waist have to be judged against each other while you are upright; and a garment that is worn loosely lets fluid pool where it is least wanted. Tell the clinic your full medical history, every medication and supplement, any previous abdominal surgery, and any past reaction to anaesthetic.
Afterwards, wear the compression as instructed, keep the micro-entry point clean and dry, and contact the clinic quickly if pain, redness, discharge or swelling increases after the first few days. A resident medical director is on site during opening hours, so there is always a doctor who can look at the area.