Hair loss at the age of fifty may be related to physiological factors, seborrheic alopecia, baldness and other reasons. 1. Physiological factors: with the increase of age, the phenomenon of severe hair loss can occur. 2. Seborrheic alopecia: the typical symptoms often appear from puberty, manifesting as progressive thinning of hair diameter, loss of density and hair loss. 3. Patchy baldness: it can be manifested as sudden patchy hair loss, which can be accompanied by hair loss in other parts of the body. It is recommended that people in their fifties who are suffering from severe hair loss should go to a regular hospital in time to get a clear explanation of the cause, and if treatment is needed, standardized treatment should be carried out under the guidance of a doctor, so as not to bring adverse effects to the body due to delayed condition.