Groin pain in children may be caused by excessive exercise, growing pains, and inguinal lymphadenitis. 1. Excessive exercise: a large amount of exercise will lead to the accumulation of lactic acid in the muscles in the groin, which will lead to the symptoms of soreness and pain in the groin. 2. Growing pains: During the development of a child, there may be localized tendon and muscle development incongruities, leading to pain in the groin. Growing pains are normal physiological phenomena, mostly occurring at night, and do not require special treatment. 3. Inguinal lymphadenitis: mainly due to viral, bacterial and other infections, the groin will be swollen, painful, and the symptoms will be aggravated by activities. There are many reasons for children’s groin pain, it is recommended to take children to the doctor in time to determine the cause of the disease and then targeted treatment.