Non Scarring
The follicle is not destroyed, it undergoes functional changes.
- Androgenic Alopecia, Common Alopecia or Common Baldness (the most frequent, representing 90%).
- Traumatic Alopecia (trichotillomania, pressure or traction).
- Alopecia Areata (Alopecia Areata Totalis or Alopecia Areata Universalis)
- Hereditary syndromes
- Systemic diseases
- Drugs or Medications
Diffuse Alopecia:
- Acute Anagen Effluvium
- Chronic Anagen Effluvium
- Acute Telogen Effluvium
- Chronic Telogen Effluvium
Scarring
- Caused by disease of the hair follicle itself or independent.
- Aplasia Cutis Congenita
- Epidermolysis Bullosa
- Folliculitis Decalvans Capillitii
- Ichthyosis
- Epidermal Nevus
- Lymphoma
- Metastasis
- Lichen Planus, Sarcoidosis, LES
- Mycotic, bacterial, viral and protozoal diseases
- Tumours (Basal Cell Epithelioma, Spinocellular Epithelioma)
- Darier’s disease
