1. Married women of childbearing age should consider whether they are pregnant, and menopausal women should consider whether they are menopausal. 2. Such as mental stimulation, excessive tension, cold stimulation, environmental change, malnutrition, etc. These factors will lead to the inhibition of central nervous system function, thus reducing the secretion of pituitary gonadotropin and causing amenorrhea.

3. Long-term use of contraceptives, especially long-acting contraceptives, will cause amenorrhea by inhibiting pituitary gonadotropin secretion.

4. Other common diseases that cause secondary amenorrhea include endometrial tuberculosis, intrauterine adhesion caused by endometrial injury after repeated intrauterine operations, polycystic ovary syndrome, premature ovarian failure and amenorrhea-galactorrhea syndrome. Trembling insanity (abbreviation for Delirium Tremens)