I've had several dreams involving the loss of bodyparts recently.
Those dreams are never brutal, bloody or even fear-inducing - just weird, if sometimes nauseating (as in; I end up feeling nauseous during the dream itself).
In those dreams, I usually end up losing bodyparts in the same way as one would lose a key or handkerchief IRL. One moment everything's normal, and a moment later, I spontaneously lost a hand or a leg.
And then I start observing the situation as if it were something completely mundane; "Ah, so this is what I look like without a left hand" - though this is occasionally followed by depressing thoughts about how I'm now forced to live like this.
About half the time, those dreams are about the loss of limbs or parts of limbs - though I also remember an old dream in which I had been disemboweled (as in; I 'woke up' and saw my bowels lying in a pile beside my bed), and only a few days ago, I had a dream in which I suddendly found out that my testicles were gone.
They had been chopped off by a few women who had mocked and sneered at me earlier in that dream, appearantly without me noticing. And a bit later, I found my disembodied testicles stuffed in a deck of cards.
This was also one of those dreams in which I ended up becoming really nauseous.