Step 1 : Introduction to the question "What is omphalophobia?"
...A person suffering under omphalophobia has an irrational, extreme and uncontrollable fear of navels. Such a person may experience a sharp rise in anxiety and discomfort whenever exposed to a navel. The feared navel can be their own or the navel of someone else. Although this is one of the strangest phobias and one of the least prevalent, it can nevertheless be a debilitating factor in a person's quality of life. Source: ItsPsychology.com