The symptoms of abdominal pain, as well as lumbago, dysmenorrhea, irregular menstruation, etc. Vaginitis also has symptoms such as increased leucorrhea and vulvar itching. 4, physiological period, because the time of menstruation will produce stimulation of the bladder, and thus frequent urination, plus some women will have physiological pain during menstruation. In summary, a variety of diseases may cause frequent urination and abdominal pain in women, so you need to go to the hospital for relevant tests to confirm the diagnosis and then treat the symptoms.