no that is not true even if your mother (or grandmother) told you this story. it is perfectly fine to sit on cold concrete if your butt can handle it. the coldness will never reach your ovaries or kidneys and you will not have any fertility problems as a result. my high school girlfriend's mother use to make me sit on a piece of newspaper so that the cold concrete would not cause hemorrhoids!
is it true that sitting on cold concrete can cause damage to your ovaries resulting in fertility problems? . or kidney problems? and what is the reason this can or cannot happen. . thank you.