For many people, hair loss is an ongoing problem. In some situations, it is not possible to know what the underlying cause of that hair loss is. It could be due to hormones, hereditary factors, and the products and styling methods you use. In other cases, it is likely to pinpoint a specific area of concern that's causing your hair loss. One of those factors could be DHT, also known as dihydrotestosterone. The more you know about it, what it does, and why it causes hair loss, the more likely you will be able to pinpoint steps you can take to minimize this risk.