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.
If it's from a healthy person it shouldn't carry any special risk. But there are a lot of diseases that can be transmitted by blood.
If you swallow alittle blood will you get HIV
No. It isn't safe for a child to swallow anything that isn't food.
It is not safe to attempt to store your own blood. You can contact a blood bank who can help you do this for you.
no
Yes, it is safe to swallow saliva. Saliva helps with digestion and keeping the mouth clean.
yes, it is!
no
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.
Yes it is safe usually to swallow a mouth or two of bath water. I wouldn't drink it though as it will contain unpleasant tastes of soap or shampoo !
just cant swallow it