What Causes Lower Back Pain After Menstruation?

Some women experience lower back pain after their menstrual period. This pain can be categorized as either physiological (normal) or pathological (disease-related). Women experiencing such back pain should modify unhealthy lifestyle habits—especially avoiding high-heeled shoes. If the pain is severe or recurrent, medical evaluation is recommended, as it may be associated with certain gynecological conditions. So, what causes lower back pain after menstruation? Below, we address this question.

What Causes Lower Back Pain After Menstruation?

1. Physiological Factors

Many women experience some degree of lower back pain during menstruation; however, this discomfort typically does not last long and often begins to subside by the second day. Therefore, women need not be overly concerned—symptoms usually resolve spontaneously within one to two days. During menstruation, it is advisable to avoid heavy physical labor and prioritize rest. Maintaining warmth is essential: wear additional layers of clothing and soak feet daily in warm water. In addition to staying warm, drinking moderate amounts of brown sugar water may also help alleviate symptoms.

2. Pathological Factors

Endometriosis, for example, occurs when endometrial-like tissue grows outside the uterine cavity—commonly in the pelvic region—and undergoes cyclical proliferation and secretion similar to normal endometrium. However, because this ectopic tissue resides within the abdominal cavity, its periodic shedding and bleeding cannot be expelled externally. This leads to localized inflammation, pain, and potentially severe lower back pain. Women who frequently experience lower back pain during menstruation should seek timely evaluation and treatment at a specialized hospital to prevent disease progression.

Additional Information: How to Manage Lower Back Pain After Menstruation

1. Etiology-Based Treatment

Certain gynecological inflammations can also cause lower back pain during menstruation. For instance, persistent sacro-lumbar aching accompanied by increased vaginal discharge with an unpleasant odor may indicate pelvic inflammatory disease (PID) or vaginitis. Conversely, if lower back and knee soreness is accompanied by thin, odorless vaginal discharge, salpingo-oophoritis or cervicitis may be suspected. A gynecological examination is recommended for definitive diagnosis, followed by appropriate anti-inflammatory therapy. Additionally, ensure adequate rest and sleep, engage in regular and moderate exercise, and avoid smoking and alcohol consumption. In severe cases, prompt medical consultation is strongly advised.

2. Maintain Warmth

Generally, maintaining warmth is crucial for alleviating physiological menstrual-related lower back pain. Applying a hot water bottle to the lower back is highly effective in reducing discomfort, as warmth promotes blood circulation and relaxes tense muscles. For women who sit for prolonged periods, using a supportive lumbar cushion can reduce pressure on the lower back and ease pain. Gentle massage—such as rubbing the affected area with a closed fist in upward and downward motions—may also provide relief.

The above outlines the potential causes of lower back pain following menstruation. We hope this information is helpful to you.