How many days after lower back pain does the menstrual period usually start?
Jan 30, 2023
Source: Cainiu Health
Dr. Lv Aiming
Introduction
Generally speaking, menstrual periods may start one to two days after the onset of lower back pain, as menstruation can cause lumbar discomfort. However, lower back pain does not necessarily indicate an upcoming period; it could also result from spinal conditions such as lumbar disc herniation or lumbar muscle strain, which are not inherently related to menstruation. It is recommended that patients get adequate rest and avoid exposure to cold during their periods.
Generally speaking, menstrual periods may begin 1 to 2 days after the onset of lower back pain, as menstruation can cause lumbar discomfort. However, not all lower back pain indicates an upcoming period; it could also result from spinal conditions such as lumbar disc herniation or lumbar muscle strain, which are not necessarily related to menstruation.
During menstruation, hormonal changes occur in the body—for example, increased production of prostaglandins—which can trigger uterine contractions, leading to smooth muscle spasms, local congestion, edema, and aseptic inflammation. This inflammation may irritate tissues in the lower back, causing pain. If back pain is caused by pelvic inflammatory disease, the timing of menstruation varies individually. For women with regular cycles, the expected onset can be estimated based on previous menstrual patterns. Those with irregular cycles should visit a hospital for an ultrasound examination and receive appropriate treatment.
It is recommended that patients get adequate rest during menstruation, avoid exposure to cold, and refrain from consuming raw, cold, or hard foods. Applying heat to the abdomen is beneficial, but strenuous physical activity should be avoided.
