Somatic intention is a memory image of the size, shape, and form of our body, not the actual appearance, but how it looks to the inner eye. It is a sense of what we think, what we see, and what we look like when others look at us. Somatic intention is strongly influenced by social factors, such as background culture, media, fads, and even with family members, colleagues or classmates at work or school. This extreme dissatisfaction with a part of the somatic body is somatoform deformation disorder (BDD), historically known as deformity terror. Here we look at the differential diagnosis of the disease. It should be distinguished from hypochondriasis: hypochondriasis is characterized by a special concern for one’s health, and body dysmorphic disorder is concerned with what deformities there are in one’s body, both of which are also elements of obsessive-compulsive thinking in OCD patients. The best way to distinguish OCD from them is in terms of the content of these two aspects. Most hypochondriacs and body dysmorphic disorders are concerned with only one aspect of the problem. Moreover, while OCD patients fear contracting a disease in the future, hypochondriasis and body dysmorphic disorder usually focus on something that is already present, such as the hypochondriac fear that they have already contracted something.