Regular masturbation bad? For health?

Hi Sir, I just wanted to know is frequently masturbing (twice daily) bad for health? I read one of the article that masturbating regularly helps in reducing stress and also is one of the great stress busters. However, I wanted to know that will there be any implications on my health in future due to regular masturbating as many other sex articles and counsellor says that masturbating may harm the reproduction of sperms naturally and that it may also cause some burning feeling to the urinal. Let me know from doctors itself so that I can take care of my health in more proactive ways. Also, I request you and the team Practo to please keep this conversation confidential and between the counsellor/doctor and myself. Regards, Vaibhav Nadpurohit