Middle-aged and elderly people have secretions in the foreskin of the penis, which may be foreskin scale, and may also be caused by diseases such as prepuce glans and prostatitis. 1. Circumcision: Generally, middle-aged and old people with long foreskin or circumcision, due to lack of hygiene and untimely cleaning of the pubic area, will lead to the accumulation of secretions in the foreskin and the formation of circumcision scale. If not cleaned for a long time, it will lead to more and more foreskin scale, which will breed a large number of bacteria and viruses, and eventually cause inflammation. 2. Glansphritis: This is a common penile disease. People suffering from glansphritis will have red spots and white spots on the penis, accompanied by swelling and pain, while liquid secretions will appear inside the foreskin. 3. Prostatitis: Prostatitis can also lead to secretions within the foreskin, which can enter the foreskin through semen or urine. The secretion in the foreskin of the penis of middle-aged and old people may also be caused by other factors. In conclusion, it is recommended that patients go to a regular hospital in time to find the right treatment program and strive for a speedy recovery.