Much is still unknown about what causes phobias. However, there may be a strong correlation between your phobias and the phobias of your parents. It may be possible for children to learn phobias by observing a family member's phobic reaction to an object or a situation.

Children who are extremely shy may be at higher risk of anxiety disorders later in life. Phobias and other anxiety disorders appear to be more common in women. Factors may include hormones, cultural expectations to put other people's needs first and a greater disposition to report anxiety to a doctor.

Simply feeling uncomfortable or uncertain about an object or situation may be normal and common. If your phobia isn't disrupting your life, it's not considered a disorder and you may not need treatment. But if your fear becomes irrational and uncontrollable to the point that it affects your social interactions or job duties, you may have a disorder that requires medical or psychological treatment. See your doctor or a mental health professional such as a psychiatrist or psychologist. If you first see a mental health professional who is not a psychiatrist — psychiatrists are medical doctors — be sure to see your medical doctor as well to rule out other causes for your anxiety.