Itchy inner thigh scrotum can be considered to be caused by folliculitis, jock itch and scrotal eczema, it is recommended to go to the hospital for further examination. 1. Folliculitis: Since the hair follicles and sweat glands in the scrotum area are widely distributed, if you don’t pay attention to personal hygiene, and don’t wash it in time after exercising, it may lead to the accumulation of sweat stains and oil, causing folliculitis and sebaceous cysts, which will lead to itching. 2. Ringworm: living in humid and hot places, and not paying attention to anti-humidity care of the perineum may cause fungal infections, such as ringworm, leading to itching. 3. Scrotal eczema: In addition, if the underwear is tight and airtight, it may also cause scrotal eczema and other manifestations, which may also cause scrotal itching. There may be other causes of inner thigh scrotal scratching, and timely medical attention is recommended.