How long it takes to miss menstruation is called amenorrhea

　　How long does it take for menstruation to come? amenorrhea？Amenorrhea is divided into two types: primary amenorrhea and secondary amenorrhea. Primary amenorrhea refers to the absence of menstruation after 18 years of age ； If menstruation has already occurred but has not occurred again for more than three months, it is called secondary amenorrhea. Usually the main causes of amenorrhea are as follows:

　　1. Malformations and dysplasia of reproductive organs such as congenital absence of Uterus , no vagina, uterine dysplasia, lack of endometrium, ovarian dysplasia, no ovaries, hymenal atresia, etc.

　　2． Pituitary gland and hypothalamus disease Such as pituitary tumors, destruction of pituitary tissue, or pituitary gland dysfunction itself, hypothalamic dysfunction, and other endocrine disorders related to the pituitary gland and hypothalamus, such as thyroid dysfunction and adrenal gland dysfunction. 》》 menstruation10behaviors that can cause menstrual cramps

　　3． Systemic diseases Chronic wasting diseases such as tuberculosis, anemia , hookworm disease, nephritis, heart disease and severe malnutrition, etc. Amenorrhea caused by excessive physical exertion.

　　In addition, traditional Chinese medicine believes that the main cause of amenorrhea is qi stagnation, blood stasis, phlegm-dampness blockage, blocked arteries and lack of menstrual blood.； Or the liver and kidney deficiency, weak Qi and blood, causing the blood sea to be empty and nothing can be discharged, and the treatment can be treated with Xuefu Zhuyu Decoction, Cangfu Daotanjiu, Guishen Pills, Ginseng Yangrong Pills, etc. Traditional Chinese medicine can also use acupuncture, massage and other methods to regulate qi and blood and make the meridians smooth and effective.