estrogen

Ovarian steroid secretion

Estrogen is the primary female sex hormone, responsible for developing and regulating the reproductive system and secondary sex characteristics like breasts and body fat distribution.

The ovaries produce most estrogen, though smaller amounts come from fat tissue and the adrenal glands.

Estrogen levels fluctuate through the menstrual cycle and drop sharply at menopause.

Synthetic estrogens appear in birth control pills, hormone replacement therapy, and gender-affirming treatment for transgender women.

Also spelled oestrogen in British English.

reproduction

ovulation

Egg discharge from ovary

endometrium · implantation · uterus · ovary · fallopian · placenta · gestation · lactation · follicle · proliferation

menopause

hot flashes

Brief intense warmth episodes

bone loss · osteoporosis · mood swings · sleep disturbances · HRT · perimenopause · postmenopause · flushes · palpitations · atrophy

biochemistry

estrone

A natural estrogen

biosynthesis · receptors · cytochrome · metabolites · substrate · cholesterol · enzymes · bioactive · lipids · progesterone

environmental

BPA

Synthetic estrogen in plastics

isoflavones · plastics · pesticides · parabens · synthetic · mimics · pollution · bioaccumulation · exposure

medical

breast cancer

Malignant growth in mammary glands

mammogram · gynecology · hysterectomy · mastectomy · tamoxifen · aromatase inhibitors · receptors · blocker · therapy · deficiency

Categories
Opposites
primary sex hormones

estrogentestosterone

Chief male sex hormone

androgens · androgen · DHT

hormonal effects on the body

estrogentestosterone

Chief male sex hormone

anabolic steroids · aromatase inhibitors · tamoxifen

Phrases
Family

estrogens, estrogenic

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