Patient's question:
NoDoctor's answer:
Estradiol primarily originates from the follicles, corpus luteum, and placenta of the female ovary, with small amounts coming from the adrenal glands and male testes. Estradiol testing is a very useful indicator for evaluating various menstrual abnormalities, such as premature or delayed puberty in girls, primary or secondary amenorrhea, and premature ovarian failure, among others; estradiol concentration testing can also observe drug-induced ovulation and gonadotropin therapy.