Why does my blood separate every time I bleed from a cut?

The “pudding” is a combination of platelets (a blood cell designed for clotting), red blood cells, and a fibrin mesh that causes clotting. The liquid is blood and plasma. You clot fast.

“Blood” is a collective term applied to the melange of red and white blood cells, platelets, antibodies, and so on, suspended in plasma and coursing through your veins. The quantities of these various parts change with the situation, most notably in the case of pus.
And to be a bit nitpicky, you scratch bites because they itch.

@shilolo Do you think the fact that I clot fast means that the likelyhood of me developing blood clots is more realistic?

@Nullo Good point, but I see itching and scratching as pretty much the same thing, although scratching would be a better word to use I suppose.

@desiree333 They really, really aren’t the same. “Itch” refers specifically to a sensation. “Scratch” refers specifically to an action. Your skin itches, and so by extension you itch. You alleviate the itching sensation by scratching or scraping the irritated region.
The jerk who keys cars isn’t itching them, is he?
Dangit, all this talk has made me itchy.
Communication requires shared meaning; you can’t go off and re-define words to suit you.

You get similar phenomena when draining sufficiently deep zits.

@Nullo Dictionary.com allows itch as a verb meaning “to scratch a part that itches.” Admittedly it’s “informal” but nevertheless a part of our language whether you like it or not. :)

@desiree333 Without knowing more than this little tidbit, I have no way to know, but I doubt it. Why?

@lapilofu That just means that they’ve caved, the weaklings.

Maybe get your platelet numbers checked, they might be high, it is a simple blood test. There are other clotting factor tests which are more expensive. I am positive for one that I have been tested for, and my family does indeed die from things like heart disease all too young and my father has had a DVT. Might be statistically more dangerous for you to take things like birth control pills or to let yourself get dehydrated if you have some of these risks. Having said all of that, I never noticed my own blood separate quickly. Do you by any chance have very high cholesterol or triglycerides? When blood sits the fats will eventually rise to the top, but I can’t imagine you would see this from a small bleeding wound. I’m not a doctor, just thinking off of the top of my head.

Are you a mutant?

@shilolo Just wondering I suppose.

I was actually looking for an answer to something similar. When I get a cut or am poked by something (fish hook…), before my blood has a chance to clot, it visibly separates into two different color fluids. One is red, as blood outside the body should be, the other is clear. The first time it happened I didn’t notice right away because I covered it up, then I noticed a drop on a picnic table. It wasn’t like the clear fluid was forming a ring around the red blood, it was more on a slant, so the clear fluid was at the higher point. Almost like the blood was heavier. I ignored it, but it’s been happening more and more, and I’m a little concerned.

@TheGeek Yes! This is exactly what happens to me. I always notice it after I blot the blood on a tissue.

Also, my blood type is O- and when I got it typed, the lady seemed to take an extra long time separating the blood (or whatever it is that they do). I think my blood is weird, the lady looked at me and said something along the lines of “this one’s taking a long time”.