Celeb and noted Spanx wearer, Kim Kardashian (Getty) The Huffington Post recently asked a gastroenterologist, a dermatologist and a chiropractor to elaborate on the possible medical dangers of wearing Spanx and other shapewear, and their answers, quite frankly, are far scarier than your juice fast-induced bloating. According to the experts, your stomach, intestines, colon, diaphragm and bladder all get compressed when you stuff yourself into a pair of Spanx. The Spanx’s tightness can also lead to decreased circulation, blood clots, varicose veins and something called “lymph congestion,” which sounds really great.