What's with the backache before your period?

The symptoms of premenstrual syndrome often occur a week or two before menstruation, and quickly reduce after menstruation until they disappear. The most common symptoms include headache, breast pain, abdominal fullness, limb edema, weight gain, etc. Dysmenorrhea refers to abdominal pain, pain, backache or other discomfort before and after menstruation, which can affect the quality of life in severe cases. Primary dysmenorrhea is mainly caused by increased levels of prostaglandin in the endometrium. If low back pain still cannot be relieved after menstruation is clean, attention should be paid to excluding other diseases.