Mental retardation - macrocephaly - coarse facies - hypotonia refers to a form of intellectual disability that is characterized mainly by below-average mental ability, a large head, a rough-surfaced face, and decreased muscle strength. Thus, individuals with this form of intellectual disability often have problems performing physical activity. Like other individuals with intellectual disability, an individual with this condition often has problems with reasoning and solving problems, as well as performing day-to-day tasks. The condition is also often diagnosed during childhood. Doctors diagnose this form of intellectual disability if an unusually large head and muscle weakness are observed. Signs like walking and talking late, slow mastering of basic tasks, and having difficulty remembering things may also suggest this condition in children. Treatment is based on a case-by-case basis and depends on the specific needs of the patient. Physical therapists often help patients develop an exercise program to increase muscle strength. Dermatologists often suggest undergoing surgery to fix the rough-surfaced face symptoms. Doctors seek help from various therapists and community services to provide support and care for families affected by intellectual disability.