Hair loss – or alopecia - is a very common issue amongst almost equal amounts of men and women, and it occurs for all kinds of reasons – some of which haven't been discovered yet. Of course, each type of hair loss affects people differently, and each person responds differently too, which is why there has to be such a wide range of solutions for hair loss; there's such a wide range of hair loss to start with.
Alopecia is often though of as being a specific disease, however this is a misunderstanding. Alopecia simply means hair loss, and there are many different types of hair loss, hence in the paragraphs below many different forms of alopecia will be referred to. It must be noted that while there are several theories as to the causes of Alopecia, as of yet no one can completely explain hair loss.