Missing leg personality disorder is a personality disorder marked by lack of one or more legs. Diagnosis requires at least 5 of the following 9 criteria:

• Cannot walk
• Hops around to get from place to place
• Has a stump at the place where the knee would be
• Leans on other people a lot
• Displays a lack of interest in athletic pursuits
• Obsession with obtaining a prosthetic leg
• Aversion to travelling
• Becomes hostile when asked to stand up
• Cannot drive stick shift

Missing leg personality disorder can be diagnosed only if these symptoms are not considered normal in the patient's native culture. Missing leg personality disorder cannot be diagnosed if prosthetics make the patient ineligible for diagnostic criteria.