The Dermatology life Quality Index (DLQI) is a ten-question questionnaire used to measure the impact of skin disease on the quality of life of an affected person. It is designed for people aged 16 years and above. The Dermatology life Quality Index (DLQI) is a ten-question questionnaire used to measure the impact of skin disease on the quality of life of an affected person. It is designed for people aged 16 years and above. The DLQI was created by Andrew Y Finlay and Gul Karim Khan from 1990 to 1994 at the Department of Dermatology, University of Wales College of Medicine (now Cardiff University), Cardiff, UK. 120 patients with a variety of skin diseases completed a questionnaire that asked them to write down all of the ways that their skin disease affected their lives. 49 different ways were identified, and these were used as the basis of the questions of the DLQI. The DLQI was first presented at the British Association of Dermatologists annual meeting in July 1993 and described in an article published in 1994 in Clinical and Experimental Dermatology. This article has become one of the most frequently cited articles in clinical dermatology. The DLQI is the most frequently used method for evaluating quality of life for patients with different skin conditions. There are 10 questions, covering the following topics: symptoms, embarrassment, shopping and home care, clothes, social and leisure, sport, work or study, close relationships, sex, treatment. Each question refers to the impact of the skin disease on the patient’s life over the previous week. The DLQI has been translated into over 115 languages. The full translations are available at the Cardiff University Department of Dermatology website.