Because this kind of clothes has a corset effect, it is definitely not good to wear them for a long time. First, its ventilation effect is not good, which affects perspiration and skin development. Second, long-term collapse will oppress blood vessels, leading to poor blood circulation and even blockage. Third, it is not good for female genitalia, and it is easy to cause pudendal ischemia and affect the urinary system. Athletes only wear tights on the playground, but they don't wear them at ordinary times.