For different reasons for not having menstruation (not having an aunt), such as pregnancy menstruation does not need to be treated, such as pathology, then use different methods of treatment, such as ovarian failure, endocrine disorders, etc. can be used estrogen, progesterone drugs, etc. respectively. 1. Pregnancy: If a woman has had sex and her period is delayed for more than seven days, she should first use a pregnancy test to see if there is a double bar, and then go to the hospital to take a blood test for hCG to see if she is pregnant. It is normal not to have menstruation after pregnancy and there is no need to induce menstruation. 2. Ovarian failure: women enter menopause or premature ovarian failure, resulting in menstruation for a long time, if necessary, you can use estrogen and progesterone drugs to make menstruation. 3. Endocrine disorders: due to the hormone level of women is not adjusted, resulting in insufficient secretion of progesterone, endometrial thickening of menstruation, the need to use progesterone drugs to make menstruation. No menstruation need to go to the hospital as soon as possible, by the doctor according to the specific circumstances, the formulation of individualized diagnosis and treatment plan, for different causes of different treatments.