Brian (banespawn) wrote in little_details,

Effects of repeated, long-term blood donation

I'm writing a fantasy novel in which a character has a curse that makes his blood the source of all magic. This curse only afflicts one person at a time. When that person dies, someone else inherits the curse. This has been going on for a thousand years and the current cursed individual has been held prisoner for 15 years, during which time his captors have drawn blood from him as often as possible.

The magic of his blood aids in healing, so I have some leeway in terms of how often they can take blood and how much it affects him. Needles have been developed to improve blood extraction, though they are larger than normal hypodermic needles, more similar to the needles used to drain fluids from joints.

I've done searches on the affects of giving blood, the longer term effects of repeated blood loss, the effects of anemia due to iron deficiency, and iron-rich foods.

What I'm really trying to nail down is:

1) What sort of state would this person be in? Would he be constantly fatigued? Would his mind be gone? Would he be in any sort of pain?

2) I need for my MC to try to help him in some way. I had originally thought he might give him something to ease his pain, but if he's not in pain, I'm not sure what to use.
Tags: ~medicine (misc)

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