Why does lower back pain occur when menstruation comes in?

Patient's question:

No

Doctor's answer:

During the menstrual period, lower abdominal discomfort such as a heavy sensation, lower back and sacral soreness, breast tenderness, fatigue, diarrhea, headache, and emotional instability may occur due to pelvic congestion and other factors. These symptoms typically disappear after the period and are considered normal.