Hair loss can be caused by various factors. It could be that you are not eating healthy foods, or that you are using a hair product that is causing a bad reaction to your hair. I had a friend who only realized that he had a problem with hair loss after using a hair product is recommended by another friend of his. When using the product, his hair began to fall at an alarming rate and it was only when it was visible that he recognized that the use of the product was the problem. Fortunately for him, that he had his hair back. Of course, there are many reputable services such as a hair restoration surgeon which can do the required hair transplant surgery to get your hair back.