What is male pattern hair loss (androgenetic alopecia)?

Hair loss resulting in thinning is known as alopecia. When it is related to hormones (androgens) and genetics, it is known as androgenetic alopecia. When androgenetic alopecia denudes an area of the scalp it is called baldness. Male pattern hair loss is characterised by a receding hairline and/or hair loss on the top and front of the head. A similar type of hair loss in women, female pattern hair loss, results in thinning hair on the mid-frontal area of the scalp and is generally less severe than occurs in males.