Sudden cessation of menstruation in women is considered to be related to pregnancy factor, disease factor and other reasons. 1. Pregnancy factors: pregnant women, usually because the fertilized egg in the uterine lining bed, the body’s hormone level changes, resulting in the uterine lining is no longer shedding, so it will cause sudden menopause, especially in the reproductive age of women, can be clarified through the blood test, urine test and ultrasound examination. 2. Disease factors: for example, women with premature ovarian failure may suffer from chromosomal abnormalities, autoimmune diseases, radiotherapy damage, infections, etc., which may result in the loss of normal function of the ovaries before the age of 40, manifesting itself as sudden menopause, which can be clarified through the measurement of sex hormones. 3. Other factors: mental stimulation, excessive exercise, weight loss, causing the hypothalamus, pituitary gland and other central nervous system dysfunction, affecting ovarian function, etc., can cause sudden menopause. After a woman suddenly stops menstruating, you need to cooperate with a professional doctor to clarify the cause, and then do targeted treatment, do not take medication without authorization.