The itchy condition next to the penis is usually caused by skin infection, penile infection disease, pubic lice disease, etc. It is more common if only the pubic hair has obvious itching symptoms. 1. Skin infections: mostly due to fungal infections, some patients have ringworm, eczema, accompanied by itching, skin erythema, redness. Pay attention to avoid spicy stimulation, and keep dry and clean around the local area. 2. Penile infection disease: generally for the penis head and glans is more common, mostly due to bacterial infection resulting in penile itching, pain, surface redness, swelling, ulcers and other symptoms. 3. Pubic lice disease: a common sexually transmitted disease, pubic lice and eggs can be found in the pubic hair, resulting in patients with symptoms of itching. Itching next to the penis has more causes, patients do not have to be overly nervous, if the situation is serious, it is recommended to go to the hospital for treatment, so as not to delay the condition.