infertility

Menstrual cycle: normal

Menstrual cycle: normal

All you need to know about periods, including what's normal and what's not. Plus, see what happens inside your body during the different phases of a normal menstrual cycle.

Endometriosis

Endometriosis

Endometriosis is a condition in which tissue similar to the tissue that lines the uterus (endometrial tissue) grows in places outside the uterus.

Premenstrual syndrome (PMS)

Premenstrual syndrome (PMS)

Premenstrual syndrome (PMS) causes unpleasant physical and psychological symptoms in the lead up to menstruation. Symptoms go away within a few days of getting your period, but return again each month.