If menstruation has been suspended for 10 months and now menstruation comes back, it may be due to residual follicle development; it may also be caused by malignant diseases such as cervical cancer or endometrial cancer. 1. Residual follicular development: after 10 months of menopause, if there are residual follicles in the ovaries and they have developed and matured, vaginal bleeding may occur, which is the same as the mechanism of menstruation, and women do not need to worry too much about it. 2. Cervical cancer: after 10 months of menopause, women who have menstruation again need to consider that it is a manifestation of cervical cancer, especially when the bleeding occurs after transvaginal operation or coitus, then they should actively carry out relevant examination. 3. Endometrial cancer: if women have menstruation again after 10 months of menopause, it may be endometrial cancer. A typical symptom of endometrial cancer is abnormal vaginal bleeding after menopause. There may be other reasons for women to have menstruation again after 10 months of menopause. It is recommended to go to the hospital in time to have a complete examination to clarify the cause of the disease, and then give targeted treatment under the guidance of the doctor.