Today, hair loss is a problem for men, women and children. Many women with hair loss suffer in silence. They will alter their hairstyle to hide thinning or patches. But the sooner you seek care, the better the chances of successfully treating it. Unexplained, excessive hair loss can be really worrying and scary! The good news is that there is often a way to fix it. Here are 7 causes of hair loss, and how to treat them.