The itchy both sides of the male crotch has been black. The causes of this condition usually include physiological and pathological factors. Physiological factors include underwear staining, long-term friction, scrotal humidity, etc., and pathological factors include ringworm and eczema. I. Physiological factors: black panties lose color and may make the skin around both sides of the crotch darker. If the texture of the panties is hard and irritates the surrounding skin, an itchy feeling may occur. In addition, if the underwear is not properly worn and rubs the crotch skin for a long time, it will cause a slight break in the skin, leading to pigmentation, which in turn can lead to darkening of the crotch sides and an itchy feeling. When the body sweats more, the crotch does not dissipate heat well, which can also lead to a moist and itchy scrotum. In this case, it is recommended to change the underwear with good breathability, cotton and soft texture to avoid such phenomenon. The first thing you need to do is to get a good understanding of the situation. You can go to the hospital to confirm the diagnosis and follow the doctor’s instructions to take oral or topical antifungal drugs, such as terbinafine, itraconazole, etc.; 2. Eczema: If eczema appears on the skin of the crotch, it can also cause blackness and itchiness on both sides of the crotch, so you can take oral antihistamine drugs under the doctor’s guidance and apply glyburide lotion, hormonal drugs, etc. Men with itchy, black crotch on both sides need to strengthen daily care, diligent change of underwear, at the same time should pay attention to keep the crotch skin clean, dry, while avoiding scratching.