Short- and long-term complications bariatric surgery are possible. Immediately following the procedure, there is an increased risk of pneumonia and blood clots in the legs. The latter may be reduced by frequent walking. Incision infections may also occur, although the risk is less with laproscopic procedures. Leaks may also occur at the staple lines. Long-term complications include hernias, anemia and other vitamin and mineral deficiencies, dehydration, body aches, dry skin, fatigue and feeling cold when others are warm. Rare complications include the development of ulcers and narrowing of the stoma between the stomach and the intestine.