The diagnosis is usually clinical. Medical practitioners with experience in dermoscopy can increase the accuracy of the clinical diagnosis with this tool.[114][115]  Definitive diagnosis of scabies is by microscopic examination of the scrapings in potassium hydroxide 10% solution, demonstrating mites, ova or faeces. The skin is scraped with a sterile blade and the skin sample is placed in mineral oil for transport.[116]  A standard skin biopsy may make the diagnosis.