On the 11th day of menstruation, the thickness of the lining of the uterus is about 6-8mm, but the exact thickness needs to be judged according to individual circumstances. On the 11th day of menstruation when the period has just ended for a few days basically does not appear endometrial overthickness, the thickness is about 6-8mm, but the specific thickness is how much needs to be judged according to individual circumstances. Under normal circumstances, the thickness of the uterine lining during ovulation can reach about 8-10mm. If the endometrium is found to be thicker or thinner, it may affect the fertilization of the egg and lead to infertility, so it is best to consult a doctor actively when such symptoms occur. In general, you need to observe your physical condition, pay more attention to rest, and maintain good dietary habits.