Introduction:

A wide range of infectious, neoplastic and inflammatory dermatoses can affect the male genitalia.

Several common diseases may involve the genital region only incidentally, while others present in this region with unusual features.

In addition, there are some conditions that are entirely or predominantly confined to these regions.

Common skin disorders:

Allergic or irritant contact dermatitis

Balanitis xerotica obliterans

Carcinoma in situ: Erythroplasia of Queyrat, Bowen disease

Fixed drug eruptions

Papulosquamous or systemic disorders

Psoriasis

Squamous cell carcinoma

Sexually transmitted diseases*

Chancroid

Genital herpes

Genital warts (condylomata acuminata)

Granuloma inguinale

Syphilis

Rare infectious causes

Fungal infections

Herpes zoster

Lymphogranuloma venereum

TB