Many people who have somatization disorder will also have an anxiety disorder.

Undifferentiated somatoform disorder. This is a less specific version of somatization disorder. A diagnosis requires that a person have one or more physical complaints of unexplained symptoms for at least six months.

Hypochondriasis. People with this type are preoccupied with concern they have a serious disease. They may believe that minor complaints are signs of very serious medical problems. For example, they may believe that a common headache is a sign of a bran tumor.

Body dysmorphic disorder. People with this disorder are obsessed with -- or may exaggerate -- a physical flaw. Patients may also imagine a flaw they don't have.

The worry over this trait or flaw is typically constant. It may involve any part of the body. Patients can be obsessed with things such as wrinkles, hair, or the size or shape of the eyes, nose, or breasts.

Conversion disorder. This condition strikes when people have neurological symptoms that can't be traced back to a medical cause. For example, patients may have symptoms such as: