Idiopathic

Sporadic

Congenital

Familial

Autoimmune disorders

Systemic Lupus Erythematosus (SLE)

Dermatomyositis

Medications

Minoxidil

Diazoxide

Latanoprost

Bimatoprost

Cyclosporine

Tacrolimus

Phenytoin

Topiramate

Zidovudine

Streptomycin

Steroids

Interferon alpha

Psoralen

Penicillamine

Benoxaprofen

Infections

HIV type 1

Inflammatory Conditions

Trachoma

Vernal Keratoconjunctivitis

Uveitis

Porphyria

Endocrine disorders and

Hormonal imbalances

Hypothyroidism

Anorexia Nervosa

Pregnancy

Malnutrition

Paraneoplastic

Acquired hypertrichosis lanuginosa