A small hard ball of flesh on the scrotum may be related to acromegaly, sebaceous gland disease, scabies and other causes. 1. Condyloma acuminatum: may be infected with human papillomavirus, then may appear on the scrotum to grow a small ball of flesh, manifested as a papilla-like or cauliflower-like superfluous organisms. 2. sebaceous gland disease: if the scrotum is not clean enough, it is easy to have dirt blocking the sebaceous glands, and then form sebaceous gland ectasia or sebaceous cysts, which will show a small ball of flesh on the scrotum and hard. 3. Scabies: If there is a scabies mite infection that leads to scabies, it can also lead to such a phenomenon in the scrotum, usually accompanied by intense itching. In addition, the scrotum grows a small meatball and hard, can also be seen in other diseases, it is recommended that patients go to the hospital in time to avoid delaying the condition.