Pubic hair is that which covers the area around the sex organs. It is generally darker in color and stronger in texture than other hair found on the human body. It is caused by the rising levels of androgen during puberty. Pubic hair is a secondary sex characteristic.
The growth of hair can go up toward the navel, but will always continue to grow down past the pubic region and ending at the anus (the hole between the buttocks). In females hair will cover the outer lips of the vagina; in males hair will grow around the base of the penis and lightly cover the scrotum (the outer sack containing the testicles).
Pubic hair is sometimes called a "bush," "nest," "pubes," or "curlies".
Female pubic hair is sometimes made into a fashion item. Some people may change the way their pubic hair looks, by trimming or shaping it.