As the human body grows older, hormone secretion gradually declines, and libido should be relatively low, so the phenomenon of hypersexuality in the elderly is abnormal, mostly due to tumors or neurological diseases. 1. Tumor factor: when the old man has the tumor of hypothalamus or pituitary gland or adrenocortical tumor, it will cause the secretion of sex hormone in the old man’s body, which will cause the concentration of sex hormone to increase and the libido to be enhanced. 2. Neurological diseases: some neurological diseases, such as traumatic brain injury, epilepsy, vascular dementia, cause brain dysfunction, weaken the inhibitory effect of the nerve center, which affects the limbic system and the thalamus on the regulation of libido, resulting in hypersexuality. 3. drug factors: some older people, for various reasons, will use a lot of sex hormone drugs, can also lead to hypersexuality. Elderly hypersexuality is not normal, it is recommended that patients go to the regular hospital in a timely manner to seek treatment, and strive for early recovery.