Usually, because adolescents have little knowledge about puberty and mothers often believe based on their own experience that menstruation can be irregular for several years after the first menstruation, the diagnosis and treatment of the disease is often delayed. Amenorrhea is divided into primary amenorrhea and secondary amenorrhea.
Primary amenorrhea: Primary amenorrhea is the absence of menstruation in women who have reached the age of 18 or whose secondary sexual characteristics have developed for more than 2 years. It is seen in pseudomenorrhea due to atresia of the genital tract, congenital abnormalities of the genital tract such as uterine hypoplasia or agenesis, congenital ovarian hypoplasia or agenesis, central lesions (primary pituitary hypogonadism, tumors, etc.) and congenital adrenal cortical hyperplasia.
Secondary amenorrhea: It is a condition in which menstruation has been regular, but later stops for more than 6 months due to some reason. Common causes include endometrial damage or adhesions (commonly caused by multiple scrapings and excessive scrapings that damage the endometrium and cause adhesions in the uterine cavity) and tuberculous endometritis, premature ovarian failure and polycystic ovaries, functional ovarian tumors, environmental changes, external factors such as mental trauma and malnutrition, taking birth control pills, and abnormal tumor function of the central system. weight loss, excessive focus on body image, excessive exercise, etc. Of course, we must exclude organic diseases.
Nowadays, living conditions have improved and menstruation is early, and the average age of menarche for Chinese girls is 11-12 years old. Treatment should be given according to different causes.