Yes it may cause baldness. I'm no doctor but testosterone is a part that keep our hair strong and thick. Excessive masturbation cause low testosterone and porn use affect you psychologically. Both have negative impact on people . If you're new think positive you're not alone. I in this for 7 years . When there was no problem in during my staring years. I thought negative and cause more problems to myself. You are okay think this and leave for all and everything will turn out fine . That's for sure