If you do not have a period after hysteroscopy, it is often due to the following reasons: 1. because you have sex after hysteroscopy, you are not pregnant clinically, so you do not have a period, it is recommended that you can detect it by early pregnancy test paper. 2. if you do not have a period, it is likely that it is caused by endocrine disorders, excluding pregnancy, you can take progesterone orally to promote menstruation, once a day, 2 capsules once, for 3 days. 3, if after oral progesterone, the eighth day of discontinuation of the drug is still not menstrual, it may be due to hysteroscopic surgery or diagnostic scraping, resulting in endometrial damage, causing uterine adhesions, so it will lead to non-menstrual conditions, it is recommended to do ultrasound examination. If the endometrium is still thin at this time, the possibility of uterine adhesions is very high and it is recommended to do hysteroscopy again if necessary to separate the adherent tissues.