Hyperpigmentation from the hormone melanin in the skin, characterized by brownish macules on the cheeks, forehead, lips, and/or neck; a common dermatologic adverse effect of female hormonal medications (also called melasma).
The structure that forms on the surface of the ovary after every ovulation and acts as short-lived endocrine organ that secretes progesterone.
Glands that secrete one or more hormones directly into the blood.
The collective term for one of two major classes of female sex steroid hormones (the other is progestins); estradiol is responsible for most estrogenic physiologic activity.
The passages through which ova are carried from the ovary to the uterus.
The hormone that stimulates the testes and the ovaries.