What causes lower back pain in men after sexual intercourse?

There are several possible causes for lower back pain in men after sexual intercourse, common ones include: 1. Excessive sexual activity: Frequent sexual intercourse or masturbation may lead to lower back muscle strain, causing back pain. 2. Kidney deficiency: In traditional Chinese medicine, kidney deficiency may cause symptoms such as soreness and weakness in the lower back and knees. 3. Improper posture: Incorrect posture or excessive force during intercourse may cause strain or overuse injury to the lower back muscles. 4. Urinary system diseases: Conditions such as kidney stones or nephritis may also cause lower back pain. 5. Lower back conditions: Such as lumbar disc herniation or lumbar spinal stenosis, which may worsen after sexual activity and lead to back pain. To prevent lower back pain after intercourse, it is recommended to maintain a moderate frequency of sexual activity, pay attention to posture and intensity during intercourse, and strengthen lower back exercises to enhance the strength of the back muscles. If the pain persists or is accompanied by other symptoms, timely medical evaluation is recommended to determine the underlying cause.