Penile root itching may be due to: 1, folliculitis of the skin at the root of the penis, the appearance of the skin follicles can be seen, the local appearance of red dots, erythema or red bulges, etc., which can be accompanied by obvious itching or skin flaking, etc., commonly found in poor local hygiene or the presence of pubic lice patients, there may be a more serious itching, need to go to the hospital for further examination to make it clear. 2, the appearance of the localized Skin allergies can appear localized itching and accompanied by local skin redness or redness in other parts of the body, mostly due to contact allergy or oral allergy to drugs, food, etc., need to carry out allergen testing, if necessary, anti-allergy treatment. 3, localized fungal infections, seen in patients taking antimicrobials for a long time or patients suffering from diabetes, etc., may be due to the accumulation of localized fungal growth. This may lead to localized itching accompanied by flaking skin and increased local white secretions, which need to be further diagnosed by fungal examination.