Hematophobia is the irrational fear of blood. Those with this condition may faint at the sight of others, or even their own, blood. Seeing blood, even only in pictures or videos, may remind them of a past injury or death. Being exposed to blood or the mere thought of it may make a person with hematophobia experience panic attacks (intense fear, difficulty breathing, increased heart rate, a very strong desire to flee, tremors, and sweating) ; some experience a decrease in heart rate and blood pressure which leads to weakness, paleness, and fainting. Treatments include cognitive behavioral therapy, anti-anxiety medication, and desensitization.