It's only small, but it's dry - has definitely been there for 10 days, if not more... it's from my dog, who is on heat. She sometimes licks her bloodstains (sorry, tmi, I know) so not sure if that's why it has a "border" or if this is just how the blood has settled into the fabric?
Paracetamol packet for scale.
Last time I tried to get a bloodstain out of upholstery, I only succeeded in creating a larger but more "watered down" stain if you know what I mean, so not leaving it up to chance/Google this time!
Not my sofa so the stakes are higher 😅