Sex in your fifties is around 3 to 5 times a month, but if you are in poor health, sex may be reduced and may be around 2 to 3 times. Usually, the frequency and need for sex varies from person to person. The frequency of sex decreases with age. If the couple is in better health, the couple has a better relationship, more energy, etc., about 3 to 5 times a month will be sufficient. However, if the health condition is not good and the sexual ability is poor, the sex life may be reduced and may be around 2 to 3 times. And after sex, may also appear waist and knee soreness, weakness and other symptoms, then need to control the number of sex. Fifty-something usually have good living habits and eating habits, try not to have sex too often. Patients who have discomfort need to consult the doctor for examination and early treatment.