Is it normal to bleed when i masterbate?

Dang take it easy tigress.

Like VT said, a tiny amount isn't strange.

Also, if you're about to start your period this will happen too. Although most women calculate their periods from when the flow starts showing up in their pads, it actually starts a little bit sooner.

So if you're fingering yourself a day or two before your period, the blood you see may simply be early menstrual blood.

It depends on how much you're bleeding. A small amount of tearing from sex or masturbation can be normal, but it would be a very small amount of blood (you might see it on toilet paper if you wipe yourself, but you shouldn't see it on your fingers). If there's more than a very small amount of blood, you should see a doctor, especially if this is happening regularly.

long fingernails?