Hi, Thank you for writing to HCM, Brief Answer - Groin pain is most commonly caused by ligament injury or weakness. Explained Answer - Groin pain can be acute, and occur immediately after an injury, or it can be more chronic, and worsen over time. Although less common, groin pain in men can also be due to enlarged lymph glands, inflammation of the epididymis, a hernia, inflammation of the large or small intestine, kidney stones, a tumor, muscle strain, testicular torsion, an infection, and other abnormal processes. Groin pain can also be due to a problem in another area such as the hip. Referral pain to the groin from the hip is often caused by lax hip ligaments, called the iliolumbar ligaments. The referral patterns of the iliolumbar ligaments are to the groin, testicles, and inner thigh. Groin pain may also be caused by ligament laxity in the pubic symphysis. The pubic symphysis is often overlooked because some physicians are not familiar with the ligament referral patterns from the pubic symphysis. Hope you will get this information helpful. Thanks & Regards, Fr. Gaurav Prajapati