The unknown silent drug reaction in acne patients: rare case of isotretinoin-induced haematuria.

Background: Acne vulgaris is one of the most frequent visits to primary care physicians and dermatologists alike. Isotretinoin is the backbone of acne treatment. In most countries, depending on the health care system, isotretinoin is prescribed by dermatologists but primary care physicians are a part of the follow-up and interpreting analysis.