The airplane cup is an aid to male masturbation, and the correct use of the airplane cup at the right frequency is generally not harmful to the body. If used improperly, it may damage the penis or cause reproductive system diseases. 1. scientific application: the use of aircraft cup masturbation and normal masturbation is not much difference, to maintain the appropriate frequency, do a good job of cleaning and disinfection of the aircraft cup, generally will not cause harm to the male body. Moderate use of airplane cups for masturbation may be able to relieve stress and prevent prostatitis and other diseases. 2. Improper application: If the application is too violent, it may lead to penile injury; no good cleaning, disinfection work, or too frequent application of the cup for masturbation, may cause glans, prostatitis and other reproductive system diseases, threatening male reproductive health. To summarize, no matter what kind of masturbation should be correct and reasonable, if discomfort occurs, should be timely medical treatment.