If there is no dominant follicle on the 11th day of menstruation, the patient can continue to monitor the follicle. If there is no dominant follicle in the current menstrual cycle, the patient can promote ovulation in the next menstrual cycle. 1. Continue to monitor the follicles: some women have slow-growing follicles, so you can continue to monitor the follicles to observe the growth of the follicles. 2. Ovulation promotion: If no dominant follicle is seen in the current menstrual cycle, letrozole, clomiphene and other drugs can be used to promote ovulation on the 5th day of the next menstrual cycle, and follicle growth and development can continue to be monitored on the 11th day of the menstrual cycle. For women with thin uterine lining, estrogen supplementation can be prescribed to promote the growth of the uterine lining to ensure the normal attachment of the fertilized egg and improve the pregnancy rate. For women who do not find dominant follicles on the 11th day of menstruation, it is recommended that they go to the gynecology department of a regular hospital and choose the appropriate treatment under the guidance of the doctor to improve the chances of pregnancy.