Normal physically healthy 80-year-old men may still have a sex drive. 80-year-old man has entered the old age, due to age, the body metabolism ability to decline and appear libido loss and so on. For some healthy 80-year-old men, there is still sexual desire, which is also a normal phenomenon. In addition to the above factors, 80-year-old men whether sexual desire and physical quality, lifestyle and other closely related. However, there is no fixed standard for the time when male sexual function disappears. If a man pays attention to daily exercise, maintains physical and mental pleasure, and has good physical quality, the libido will last longer. If the physical quality is poor, emotional fluctuations, etc., then the libido maintenance time is short. It is recommended that people have a correct understanding of sexual desire to avoid low self-esteem, shame and other psychological. For men who still have sexual desire at the age of 80, they can still satisfy their needs through masturbation or sex, but they should pay attention to hygiene and frequency.