Blood-injection-injury type phobia
Blood-injection-injury (BII) type phobia is a type of specific phobia characterized by the display of excessive, irrational fear in response to the sight of blood, injury, or injection, or in anticipation of an injection, injury, or exposure to blood. Blood-like stimuli (paint, ketchup) may also cause a reaction.
Source: Wikipedia — Blood-injection-injury type phobia (CC BY-SA 4.0)