I know the following questions will probably sound silly to most. I need to mention that I have OCD and realize that the condition impacts my thinking. With that being said, I have some questions regarding the hygiene (for lack of a better term) of masturbation. I am a male and for a number of years I have masturbated into some tissue before I go to bed. Recently, I have become concerned that this practice is somehow unsanitary. Most of the ejaculate is deposited into the tissue and then flushed down the toilet. However, there is always some residual ejaculate that soaks into my boxer shorts and I'm sure that I probably get some on my hands from time to time and do not wash immediately after. I always shower first thing when I wake up in the morning, and wash my sheets once a week. First, I'd like to ask if masturbating into some tissue before going to bed is normal. Secondly, I'd like to ask if residual semen/ejaculate as I've described above is harmful in any way? For example, I was my sheets once a week, but dry-clean my comforter only about twice a year. I'm sure that some residual ejaculate ends up on the comforter. Similarly, if I get some of the ejaculate onto my hands, and then wake up in the morning, and touch my alarm clock, the door knob, or the faucet, is this extremely unsanitary? I know this probably rings of OCD, but it would be nice to get a professional answer. 

Welcome to the forum.  Masturbation is an important topic which is probably not discussed enough thanks for bringing it up.  Masturbation is normal and is is well described throughout the animal kingdom, extending to humans.  There is nothing abnormal about masturbation.  Contact with genital secretions is in no way harmful or deleterious to your health.  Thus the fact that there may be some residual ejaculate that is on your hands or skin, bed sheets or comforter is in to way dangerous to you or unsanitary.  Please don't worry about this.---