Almost 60% of women with Dysmenorrhea have Endometriosis, an illness that causes severe pain, damages reproductive organs, ...

Days 6 - 10 One dominant follicle develops that will release a single ovum in the cycle. The production of estrogen increases throughout the first half of the cycle. The estrogen travels through ...

28 If the ovum does not join with a sperm cell in the oviduct, the lining of the uterus begins to break down again and the cycle repeats. Figure caption, The thickness of the uterus lining varies ...