Pubic hair, armpit hair, hair, all belong to the body’s normal hair, their growth and the body’s androgen level related. Pubic hair plays a role in protecting the perineum and genitals, and is not harmful to the female body. However, if the pubic hair is too exuberant and is accompanied by delayed menstruation or even amenorrhea, and the skin is rough, and a married woman who has been infertile for many years cannot rule out polycystic ovary syndrome, it is best to do hormone levels and gynecological ultrasound to understand the function of the ovaries and to see if there is a mature egg discharged. Prolonged amenorrhea will lead to endometrial abnormality. Endometrium without progesterone interference will be in proliferative phase for a long time and cannot enter secretory phase, which will easily lead to cancer.