There are several advancements in treatments including antibiotics, antiandrogens or drugs that block male hormones in women, retinoids, and cyclosporine. The trigger for this type of baldness, which is also known as androgenic alopecia, is currently believed to be 5-alpha reductase, an enzyme that converts the hormone testosterone into dihydrotestosterone (DHT), which, in genetically-prone hairs on the scalp, inhibits hair growth. Different types of oral disease are found, including lichen planus and aphthous stomatitis.