Arachnophobia is the fear of spiders or other arachnids such as scorpions, ticks, and mites. It is one of the most common specific phobias, affecting up to 6% of the population. People with arachnophobia may experience intense fear or anxiety when they see, think about, or come into contact with spiders or other arachnids, which can interfere with their daily lives. Treatment options for arachnophobia may include therapy, medications, and exposure therapy to gradually desensitize the person to their fear.