Blood phobia

Blood phobia is an intense, persistent fear of blood that causes distress or avoidance and can trigger fainting. It is classified as a specific phobia.

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Vasovagal syncope: A temporary loss of consciousness caused by a reflex drop in heart rate and blood pressure. Blood-related cues can trigger this reflex, producing the characteristic fainting response.
Specific phobia: A persistent, excessive fear of a particular object or situation that causes distress or impairment. Blood phobia belongs to this diagnostic category.
Hemophobia: An intense fear or aversion to blood. This synonym names the same condition, rather than a separate neighboring diagnosis.
Needle phobia and healthcare avoidance: Avoidance of medical care driven by fear of needles or injections. Overlapping needle fear can extend blood phobia into skipped tests or treatment.
Blood-injection-injury phobia research: Scientific study of fear and fainting responses involving blood, injections, and injury. Research investigates the mechanisms and treatment outcomes most specific to this phobia.
Blood-injection-injury type specific phobia: A specific-phobia subtype involving fear of blood, injections, or injury. Blood phobia is commonly classified within this broader diagnostic subtype.
Diagnostic and Statistical Manual of Mental Disorders: A manual published by the American Psychiatric Association that classifies mental disorders. Its criteria guide clinical diagnosis of blood-related specific phobia.
Trypanophobia: An intense fear of needles or injections. Its focus is the needle or injection, even when blood is not present.
Blood-injection-injury phobia in children: Blood, injection, or injury fear occurring in childhood and adolescence. Early onset can affect vaccination, examinations, and later healthcare habits.
Biphasic cardiovascular response: A proposed pattern of initial cardiovascular activation followed by reduced heart rate and blood pressure. It has been used to explain fainting, though the pattern does not occur in everyone.