Genital ulcer is/are caused by:

B, C, A i.e. Herpes simplex virus, HIV, Human papilloma virus Any of the blistering (or ulcerating) disorders of skin can occur on genital (eg. vulva & vaina) and cause ulceration. Chronic genital ulcerations may be seen in epidermolysis bullosa, Halley- Hailey diseas, Darier's disease, nymphohymenal tears, dermatitis aefacta, radiation damage, TB, actinomycosis, LGV, Lichen planus, LS, lupus erythematosus, pyoderma gangrenosum, hidradenitis suppurativa, Crohn's disease, and malignancy (squamous, basal cell, melanoma & Langerhans cell histocytosis) Common causes of genital ulcers include syphilis (T. palladium), LGVQ, chanchoid, donovanosis & herpes genitalis (HSV-H)Q. But HIV and HPV may also 1/t genital ulcers.