The 1 cm below the glans in men generally refers to the penis, and a breakout on the penis accompanied by itching may be due to eczema, glansitis, allergies and so on. 1. Eczema: it may be caused by irritating food, mental stress, immune imbalance, etc. Inflammation of the penile skin may cause penile lesions accompanied by itching. 2. glansitis: mainly due to infections such as mold or bacteria, due to the extension of the disease may lead to inflammation of the penis near the glans area. This in turn leads to localized rashes that are red, swollen, itchy and broken. 3. Allergy: It may be due to the poor quality of clothing or the use of soap and other causes of allergic reactions of the penile skin, itching, but also with penile skin lesions. Penile skin damage, accompanied by itching, it is recommended that patients seek medical attention in a timely manner to clarify the cause of the targeted treatment under the guidance of the doctor.