Women had better not show below the knee. There is a Zusanli bamboo tree next to the knee, and there is a Sanyinjiao next to it. These places are exposed and prone to gynecological diseases. There are also official acupoints under the navel. You won't catch a cold. Cause palace cold, will get a variety of gynecological diseases, so it is best not to wear suspenders, umbilical and knee-exposed clothes.