Senescent baldness or Alopecia Senilis (Senile - old age weakness) baldness is a part of life, general atrophic changes due to old age. There is no fixed age or exact period of life for senile alopecia to start. Time for Alopecia Senilis depends upon wear out of tissues and this is highly variable from person to person. "Pure" senescent alopecia is found in persons who boast a full head of hair wellinto middle age, and who typically deny a family history of balding. Patients with senescent alopecia note a very slow but steady, diffuse thinning of scalp hair starting at age 50 and older. However, some doctors are of the opinion that senescent balding starts its first symptom or sign after the age of forty. Its onset is from the vertex where the hair go on thinning and then disappear. This trend of thinning and disappearing extends or spreads forward and backward until the whole of crown is affected in a nice symmetry. Then it looks like general thinning of hair that remains constant for few years before total baldness captures. Alopecia Senilis does not hesitate to approach eyebrows. The remains of hairs can be seen on the posterior and lateral region of the head because of greater thickness of the scalp at these areas. In senescent alopecia, graying of hair either accompanies or may precede it. Males are more prone to this alopecia and females experience thinning rather than total baldness.Women who complain of a marked degree of thinning in the few years following menopause probably have a component of Androgenetic Alopecia. Many (and perhaps most) patients with Senile Alopecia also have mild concomitant Androgenetic Alopecia, and the superimposed clinical features of common and senescent balding may be impossible to separate. Some studies have assessed the effect of aging on hair density by studying the scalp surface. The results of these studies indicate that the density of hair follicles decreases steadily with aging. There is only a slight numerical reduction in follicles that are otherwise normal. All these subtle findings would be uniform over the scalp surface.