How long before amenorrhea to stop menstruation?

For primary amenorrhea, 18-year-old girls are amenorrhea if they have not menstruated, and 16-year-old girls are amenorrhea if they have not menstruated.

2. For secondary amenorrhea, if there is menstruation, there will be no menstruation in the future, and amenorrhea is more than 3 months. Or usually menstruate every month, three menstruations should be 3 months, and every 2 months 1 menstrual cycle is 6 months, and menstruating for more than 3 months or 6 months is also amenorrhea, and so on.

Jing 'ang Brand Deer Fetus Capsule is refined from high-quality sika deer fetus in Changbai Mountain Nature Reserve and a variety of precious Chinese herbal medicine essences, which fully maintains the biological activity of deer fetus, and has the effects of enhancing ovarian function, restoring normal menstruation and delaying aging.