There will be physiological changes in men after 50 years old, mainly manifested in the decline of sexual function, memory, attention decline and may appear prostate hyperplasia and so on. 1. Decline in sexual function: at the age of 50, due to the decline in androgen levels in the body as well as the impact of some underlying diseases, men’s sexual function will gradually decline, usually manifested as a decline in libido, erection hardness. 2. In addition to the decline in sexual function, there is also a general decline in memory, inability to concentrate and a gradual decline in cognitive level. 3. In addition, there may be inexplicable irritability, depressed mood, as well as the possibility of prostate enlargement, leading to weakness in urination, waiting for urine, frequent urination and other changes. To summarize, if you find any discomfort, please seek medical attention promptly.