Whether the semen quality of a man in his fifties is normal needs to be examined in a professional hospital and cannot be judged solely on the basis of age. It is recommended that the patient go to the local professional hospital for examination. Normal sperm volume should be above 1.5ml, which can usually be judged by routine semen test in the hospital. After a man reaches the age of fifty, the quantity and vigor of sperm may decline to a certain extent, but it does not necessarily affect the quality. If you want to improve the quality and activity of sperm, patients need to pay attention to more rest, pay attention to supplementation, and consume more foods rich in protein and vitamins. If you need to improve the quality of semen, patients also need to pay attention to quit smoking, alcohol, appropriate physical exercise, avoid excessive obesity.