Noninfectious causes of a penile lesion:
(1) trauma
(2) Behcet's syndrome
(3) eczema
(4) psoriasis
(5) inflammatory bowel disease
(6) contact dermatitis
(7) lichen planus
(8) hidranitis suppurative
(9) HIV-associated aphthous ulceration
(10) fixed drug eruption
(11) contact dermatitis
Tumors of the penis:
(1) squamous cell carcinoma
(2) malignant melanoma
(3) other penile tumors
Penile lesions associated with a sexually-transmitted disease (STD):
(1) Treponema pallidum (syphilis)
(2) Herpes simplex virus (HSV)
(3) Haemophilus ducreyi (chancroid)
(4) lymphogranuloma venerum (LGV)
(5) Calymmatobacterium granulomatis (Donovanosis, granuloma inguinale)
(6) human papillomavirus (HPV)
(7) Molluscum contagiosum
(8) Sarcoptes scabiei
Other infectious causes of a penile lesion:
(1) Mycobacterium tuberculosis
(2) Histoplasma capsulatum
(3) Francisella tularensis
(4) Candida balanitis
(5) Entamoeba histolytica
(6) Dermatophytosis
(7) Schistosomiasis
