Dear Welcome to HCM We understand your concerns I went through your details. nocturnal emission is an involuntary ejaculation of semen during sleep. Nocturnal emissions are most common during adolescence and early young adult years, but they may happen anytime after puberty. Semen is produced whenever you are sexually excited and sexual excitation may come throughout the day when there are triggers. The produced semen is collected in the body. such collected semen is a waste product now and body needs to throw it out. If you do not masturbate or indulge in sexual activities, body find its own way to throw the stored semen out. Nocturnal emission is one way of throwing the semen out. There are no health aspects about this. This is an automated process and you have no control over this. Your hair loss problem is not due to this. For hair loss problem, consult a skin specialist. If you require more of my help in this aspect, please use this URL. http://goo.gl/aYW2pR. Make sure that you include every minute details possible. Hope this answers your query. Available for further clarifications. Good luck. Take care.