What fear of blood is
Hemophobia is part of the blood-injection-injury group of specific phobias. People may fear seeing their own or others’ blood, wounds, needles, injections or medical procedures. The fear is out of proportion to the actual danger and often leads to avoidance.
See irrational fears.
Why fear of blood can make you faint
Most phobias cause a fight-or-flight response with a racing heart. In blood-injury phobia, an initial rise in heart rate and blood pressure is often followed by a rapid drop, called a vasovagal response. Less blood reaches the brain, causing light-headedness, tunnel vision, sweating, nausea and sometimes fainting.
Some researchers think this response may have evolved to reduce blood loss after injury.
Symptoms
- Intense anxiety or disgust at the sight or thought of blood.
- Light-headedness, dizziness or feeling faint.
- Sweating, nausea and pale skin.
- Fainting.
- Avoidance of blood tests, injections, medical TV programmes or helping with injuries.
Causes
- Family history: blood-injury phobia often runs in families.
- A frightening or painful medical experience in childhood.
- Having fainted before, leading to fear of fainting again.
- A naturally strong vasovagal response.
How it affects life
- Avoiding blood tests, vaccinations and dental treatment.
- Avoiding pregnancy or delaying antenatal care.
- Difficulty pursuing healthcare or certain careers.
- Inability to help others in emergencies.
- Embarrassment and worry about fainting.
Applied tension: preventing fainting
- Sit comfortably and tense the muscles of your arms, legs and body for 10 to 15 seconds, until you feel warmth in your face.
- Release the tension and relax for 20 to 30 seconds without slumping.
- Repeat 5 times, several times a day for a week to practise.
- Use it before and during blood tests or when exposed to blood.
Applied tension raises blood pressure and counteracts the drop that causes fainting. Avoid tensing the arm being used for a blood test.
Gradual exposure
Exposure therapy involves gradually facing blood-related situations, starting with less distressing ones, such as the word “blood”, then pictures, videos, watching someone have a finger-prick test, and eventually having a blood test yourself. Combining exposure with applied tension is particularly effective.
Exposure is usually guided by a therapist within cognitive behavioural therapy, and many people improve in a few sessions.
Tips for having a blood test
- Tell the staff about your fear; they can help.
- Ask to lie down.
- Eat and drink normally beforehand unless told to fast.
- Use applied tension with the other arm and legs.
- Look away and focus on something else, or bring headphones.
- Ask about numbing cream if you also fear needles.
Fear of blood in children
Children who faint or panic at blood tests can be helped with preparation, honest explanations, distraction, numbing cream, lying down and praise. A child psychologist can help if fear is severe or stops necessary medical care. Parents who stay calm and avoid showing their own fear help too.
Working with fearful thoughts
People with fear of blood often expect to faint, lose control or be embarrassed. Cognitive therapy helps to notice these predictions and test them: for example, by practising applied tension while watching a short medical video and observing what actually happens. Over time, the body’s response becomes smaller and confidence grows.
Some people feel more disgust than fear; exposure still helps, though it may take a little longer.
A gradual self-help ladder
- Read and say words such as “blood” and “injection”.
- Look at cartoon images, then photographs of a small cut.
- Watch short videos of a finger-prick test, using applied tension.
- Hold a plaster or a sealed blood test tube.
- Visit a clinic and watch the procedure area.
- Have a finger-prick test, then a blood test.
Stay with each step until anxiety falls by about half before moving on. If you faint easily, practise early steps lying down, ideally with a therapist.
When to seek help
- Fear stops you having blood tests, vaccines or medical care.
- You faint frequently.
- Fear affects pregnancy care or career choices.
- You feel distressed or ashamed about the fear.
Key points to remember
- Fear of blood is a common specific phobia that can cause fainting.
- Fainting is due to a sudden drop in heart rate and blood pressure.
- Applied tension and gradual exposure are effective.
- Telling staff and lying down make blood tests easier.
Questions about fear of blood
These answers are general information and do not replace an examination or individual medical advice.
Why do I faint when I see blood?
A vasovagal response causes a sudden drop in heart rate and blood pressure.
What is the fear of blood called?
Hemophobia or haemophobia, part of blood-injection-injury phobia.
Can fear of blood be cured?
Many people overcome it with applied tension and exposure therapy.
How do I stop fainting during a blood test?
Lie down, tell the staff and use applied tension.
Is fear of blood genetic?
It often runs in families, suggesting a genetic component.
Is fear of needles the same as fear of blood?
They are related and often occur together.
Can fear of blood affect pregnancy?
It can lead to avoiding check-ups; telling your midwife helps them support you.
Is it safe to practise exposure on my own?
Early steps are, but if you faint easily, work with a therapist and practise sitting or lying down.
Can children grow out of fear of blood?
Some do, but early help prevents avoidance of medical care.
Sources
This guide is for general information and does not replace medical advice. How a problem is diagnosed and treated depends on your examination and medical history. If you think you have an emergency, contact your local emergency services.