Hypertrichosis with lanugo hairs may occur if certain conditions are present.
Conditions associated with acquired hypertrichosis lanuginosa:
(1) hyperthyroidism or hypothyroidism
(2) anorexia nervosa
(3) porphyria cutanea tarda
(4) paraneoplastic
(5) drug-related
(6) POEMS syndrome (peripheral neuropathy, organomegaly, endocrine disorder, monoclonal gammopathy, skin changes)
(7) acrodynia
(8) juvenile dermatomyositis
(9) malabsorption syndrome
(10) CNS disease or trauma
Drugs causing hypertrichosis:
(1) cyclosporine
(2) minoxidil
(3) diazoxide
(4) interferon
(5) corticosteroids
(6) phenytoin
(7) acetazolamide
(8) streptomycin