An itch under the penis.

If the patient has a tendon under the penis that produces itching symptoms, it may be that the skin of this area shows itching or allergic dermatitis, and the cause of this inflammatory skin damage may be contact with certain allergic substances or excessive sweating leading to a soaking reaction, resulting in itching. Of course, it is also possible that this area is infected with fungi, which eventually forms a local inflammatory reaction and will also produce itching.