ABSTRACT   The aim of this study is to chart a cohort of patients in the county of Västerbotten in Sweden who have been diagnosed with lichen planus. In addition to charting, the cohort has also been compared to similar previously studied groups.   The studied group consist of patients who have been referred to the Department of Medical Biosciences and Pathology between years 2009-2015 with suspicious diagnosis of LP.   After exclusion, 214 patients remained of which 130 were diagnosed with Oral LP and 84 with Genital LP. Different data such as age, medications and diseases was extracted from the dental journals.   In this cohort women were more likely to be affected by LP. The mean age for females was 63 years and 53 years for men. In the studied group 17 % were being treated for hypertension, 14 % were treated with 5 or more different medications. Tobacco use was found in 17 % and 12 % were diagnosed with an autoimmune disease.   The results from the studied cohort were in accordance with similar populations in previous studies. There is an undergoing discussion whether OLP and LP are the same disease that affects different sites.