The KOH test is a simple and effective diagnostic method used to detect fungal elements in clinical specimens. It involves the application of potassium hydroxide to a sample, such as skin scrapings, hair, or nail clippings. The alkaline nature of KOH dissolves keratin and other cellular material, clearing the background and allowing the visualization of fungal elements under a microscope. This test is particularly useful in diagnosing infections like tinea, candidiasis, and onychomycosis.
