Phobia is a condition where an individual faces debilitating anxiety or fear of a situation or object. Trypanophobia is the fear of hypodermic needles or medical procedures involving injections. In medical literature, it is called needle phobia or aichmophobia, though the latter applies to a generalized fear of sharp objects.
It was officially recognized in 1994, in the 4th edition of Diagnostic and Statistical Manual of Mental Disorders (DSM – IV).
Needle phobia generally stems from the individual; however, research has shown that 50% of afflicted individuals have an inherited condition called the vasovagal reflex action. In human physiology, vasovagal reflex action kicks in during extreme stress, prolonged standing, severe pain, seeing blood, gore or other psychological triggers.
In the case of individuals who have trypanophobia, the sight, the thought or feeling of a hypodermic needle causes a vasovagal reflex action.
This response causes the blood vessels to dilate, …