The fear of spiders is called arachnophobia. The term originates from the Greek word "Arachne," which means 'spider', and the English word, "phobia," which means an extreme aversion to or fear of something.
Sufferers of Arachnophobia purposely avoid contact with spiders because exposure leads to the experience of negative symptoms. The most common symptom experienced by people with a phobia is a panic attack.
There are different triggers for arachnophobia. Some people have an intense dislike of large spiders but are okay with the presence of smaller ones. Other people may not even feel comfortable in the same room as the picture of a spider. According to the NHS, people experiencing a panic attack may not actually be in a fearful situation.