The scrotum and inner thigh bumps may be caused by neurodermatitis, ringworm, etc. Patients usually feel a slight itching sensation, and if the itching sensation is intense, they should avoid scratching hard to prevent infection, etc. They need to go to a professional hospital in time to get a clear diagnosis. 1. neurodermatitis: The cause of this disease is not yet clear, but it is mostly related to scratching and chronic friction, etc. The itching sensation can be localized at the beginning. The itchiness can be localized at first, and after scratching there are dense patches of bumps, mostly in the scrotum and inner thighs and other parts that are easy to scratch, and the itching is more intense. It can be treated by drinking glucocorticoid ointment, tacrolimus ointment, and other medications under the guidance of a doctor. 2. Ringworm: If the patient is infected with ringworm, which can be spread through contact with the hands and feet, the bacteria can colonize the skin of the scrotum and inner thighs and appear as ringworm, which starts as an erythematous spot and gradually develops into papular damage from the inside out, similar in appearance to local growth bumps. If the skin is moist and often rubbed, the skin is prone to erosion and oozing, so you can apply topical treatment such as miconazole, terbinafine, and liraglutide, or take oral antifungal treatment such as itraconazole, etc. The bumps can be considered cured after the bumps subside and the fungal microscopy is negative; 3. Other causes: If men have bumps on the scrotum and inner thighs that are not accompanied by obvious discomfort, they may be considered as folliculitis, sebaceous gland Cysts and other conditions. If it is accompanied by itching is considered to be eczema, allergies, flat moss, etc., mostly related to local skin cleaning is not in place, or long-term in a humid state. If the itching is serious, patients can take oral antihistamines, such as cetirizine, to relieve symptoms, and topical application of glyburide lotion to keep the skin dry, active treatment to promote recovery.