Hi, Thanks for posting in HCM. I understand your concern. Masturbation is a healthy practice and a normal physiological process. It is a process by which stored semen is ejaculated voluntary and help in the process of production of fresh quantity of sperms. It also helps to relieve certain amount of mental stress. However, it should not be done too frequently and should be spaced well. Masturbation act does not have any form of adverse effect. It does not cause any form of mental or physical weakness, does not affect sexual performance in later life and does not affect fertility in the future. Doing it regularly will not affect the size of the penis. Since penis is a spongy tissue and becomes hard only when erect due to increase in blood supply, there is no possibility for it to get fractured. Variation in small quantity of length of the penis is considered normal as the strength of erection varies each time. Hence, you need not worry about such type of variations. Length or size of the penis has noting to do with sexual performance and hence you need not be unnecessarily worried about this matter. Keep your confidence high. Hope the information provided would be helpful. All the best.