The menstrual cycle is basically normal, and the amount of menstruation is significantly reduced, or even dribbled, or the period is shortened by less than two days, and the amount of menstruation is also small, known as oligomenorrhea, also known as astringent menstruation. It is generally believed that the amount of menstrual flow is less than 30 milliliters, which is equivalent to the scanty menstruation in the western medicine menstrual disorders.

The menstrual cycle is normal, the amount of menstruation is very small, or even a drop of clean; there is also a shortened menstrual period of less than two days, the amount of menstruation is also small, the disease is often a precursor to the manifestation of amenorrhea.

Hypomenorrhea can be seen in conjunction with abnormalities in the menstrual cycle, such as low menstrual flow at the beginning of menstruation or low menstrual flow at the end of menstruation.

If the menorrhagia is caused by oral contraceptive pills or injections, the pills should be stopped.

The diagnosis of hypomenorrhea is usually made when it occurs more than twice in a row. If you have always had normal menstruation and suddenly have fewer menstrual periods, you should pay attention to whether it is a miscarriage with precursor in the early stages of conception or a small amount of vaginal bleeding in ectopic pregnancy, and you must undergo further tests to identify it.