More commonly referred to as androgenetic alopecia, male pattern baldness occurs in nearly every male member of society at some point – just in different areas and to different degrees. Some hair loss will not be noticeable, but other men will lose most if not all of their hair. This is a hereditary condition that is passed down from older generations in which the hair line gradually recedes. Additionally, testosterone has a lot to do with whether or not a man will go bald and, again, it can be to varying degrees and progress through or stop at various stages. Oddly enough, however, the effect of changing testosterone levels in the body (as it applies to hair loss) only affects the hair on your head.Thinning usually begins at the hairline and top of the scalp eventually leading to the thinning of hair at the crown as well. This results in a easily distinguishable ‘horseshoe’ pattern in men experiencing male pattern baldness.