What skin and venereal diseases can be found on the genitals?

  The external genital organs of men and women are exposed to the outside, and other parts of the skin, but also prone to skin diseases, or itching, or pain, generally difficult to say, bringing a lot of inconvenience to patients, and some patients suspect that they have sexually transmitted diseases, increasing the mental burden, what are the common external genital skin diseases?
  A. Erythema, papules, nodules
  1.Candida infection
  2, scabies
  3.Second stage syphilis rash
  4.Eczema
  5.Riboflavin deficiency
  6.Enteropathy acrodermatitis
  7.Flat moss
  8.Anti-transition psoriasis
  9.Reiter’s disease
  10.Plasmacytoid glans
  11.Cyclic glans
  II. Blisters, erosions, ulcers
  1.Herpes genitalis
  2.Fixed drug rash
  3.White sclerosis
  4.Ulcerative skin tuberculosis
  5.Molluscum contagiosum
  6.Flat warts
  7.Artificial exfoliative dermatitis
  8.Erosional lichen planus
  9, Scar-like aspergillosis
  10.Acute female vaginal ulcer
  III. Abnormal discharge
  1.Gonorrhea
  2.Chlamydial infection
  IV. Hypopigmented skin diseases
  1, vitiligo
  2.Sclerosing atrophic moss
  3.Atypical hyperplasia (mucous membrane leukoplakia)
  V. Vulvar proliferative dermatoses
  1, condyloma acuminata
  2, pearly papules of the penis
  3, pseudomonal warts (villi-like labia minora)
  4, Bowen-like papulosis
  5, sweat hole keratosis
  6.Angiokeratoma
  7.Sebaceous gland ectopia
  8.Penile midline cysts
  9.Vulvar sweat duct tumor
  10.Epidermoid cyst
  11.Calcareous skin deposition
  12.Paget’s disease
  13.Basal cell carcinoma
  14.Erythroplasia
  15.Squamous cell carcinoma
  16.Wart-like carcinoma
  17.Malignant melanoma