Women with fibroids, no matter how big they are, will not affect the normal flow of menstrual blood as long as they are not in the cervix. For women with fibroids who suddenly do not have a period, it is necessary to check the blood HCG to rule out pregnancy, which is mostly considered to be caused by pregnancy and not related to fibroids. If a woman has cervical fibroids and has pain in the lower abdomen when she has her period, the fibroids may be too large and may affect the discharge of menstrual blood, resulting in the absence of menstruation. Surgery can be considered to remove the fibroids in order to restore normal menstrual flow.