Penis whitening may be fungal infection, albinism, vitiligo, skin injury and so on. 1. Fungal infection: male penis infected with fungus, can form white mycelium, mycelium membrane, patchy secretion, and so on, and accompanied by local redness, swelling or itching and other symptoms. 2. albinism: albinism patients lack melanin in the body, the clinical main manifestation of skin, hair and eye color changes, skin color becomes lighter, hair more pure white or gold. 3. Vitiligo: Vitiligo is generally a systemic lesion, in addition to penile white spots, other parts of the body can appear white spots, white hair and so on. 4. skin injury: penile local skin injury, healing can form a local white inelastic fibrous scar, thus appearing symptoms of penile whitening. There may also be other reasons, patients are advised to go to the hospital in time.