What is the ruling on using spilled blood for treatment?

Question:
He says: Honorable Shaykh, may Allah grant you success, what is the ruling on using spilled blood for the sake of treatment?

Answer:
It is not permissible to trade in spilled blood , and treatment is not done with forbidden blood except in an emergency. In an emergency, the blood that is drawn is used directly on the patient, or it is stored, and if it is needed, it is injected into the patient; there is nothing wrong with this, and it is not spilled blood. Spilled blood is what comes out of the slaughtered animal from the slaughterhouse from the jugular veins. This is the spilled blood that comes out of the jugular veins of the slaughtered animal at the time of slaughter and flows and gushes out; this is the spilled blood. Yes.