The groin is a region between the thighs and the abdomen that contains several muscles, including the adductor muscles of the hip, which extend between the femurs (thighbones) and the pelvis.
Pain in the groin is often caused by an overuse injury or a trauma. Forceful impacts, extreme flexion and repetitive motions that occur during sports activity or physical labor can strain or tear muscles and connective tissues, or cause hernias. These stresses can also damage the hip joint. Groin pain is a common symptom in labral tears and hip arthritis.
Congenital conditions, such as a hip impingement caused by a bone deformity, can also create wear and tear on the hip joint, leading to arthritis that can present as groin pain.