Yes. Your own semen is not a risk to you, unless it has been inside another person which will pose an STD risk. It is clean and nutritious, many people will just feel squeamish about it because of its sexual significance and the fact that it is something produced by your body which main intent isn't consumption.
Most guys do at some point just to see how it tastes. It's no big deal. It came from you so there can be noting in it to hurt. It's just protein and water for the most part.
If you swallow your own semen, then no, you can't get anything new. It's quite safe. It's fairly safe, too, to swallow someone else's semen.
Not really, urine is waste, when you urinate you are removing excessive amounts of bacteria from your body.
No. It isn't safe for a child to swallow anything that isn't food.
Yes you can. Urine is sterile. That is why if your stuck in the desert with nothing to drink it is recommended to drink your urine.
Fresh Urine is sterile so yes you are safe... its only when it has a chance to sit out for a while that is able to grow bacteria. You should find some new companions.
no
It is safe for a male to drink a woman's urine, or any humans urine, as long as it is in small doses and there are no toxins, such as dangerous medication, in the urine.
Yes, it is safe to swallow saliva. Saliva helps with digestion and keeping the mouth clean.
yes, it is!
no
Yes it should be fine as urine is very sterile, my puppy does it all the time and he just looks at his paw and shakes it then runs off, its quite amusing :)
Yes it is safe. I do not advise doing that though. It is safe and you can do so if you wish. You cannot give yourself any infection from taking your own semen. Many males masturbate and swallow their own semen. Recent studies have found that consuming human semen reduces depression. You can find an article about that in the related links below.