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Dermatophagia is a type of pica and a body-focused repetitive behavior that involves gnawing or biting one's own skin, usually at the fingers. It can be conscious or unconscious, and it may be related to other disorders such as OCD or autism.
The self-injury begins with biting of the lips and tongue; as the disease progresses, affected individuals frequently develop finger biting and headbanging. [14] The self-injury can increase during times of stress. Self-harm is a distinguishing characteristic of the disease and is apparent in 85% of affected males. [15]
Angelman syndrome is a genetic disorder that affects the nervous system and causes intellectual disability, seizures, and happy personality. It is due to a lack of function of the UBE3A gene on chromosome 15, which can be caused by deletion, mutation, or imprinting errors.
Excoriation disorder, also known as dermatillomania or skin picking disorder, is a mental disorder that causes repeated picking at one's own skin. It can be triggered by stress, anxiety, or perceived skin defects, and can lead to physical damage, infection, and psychological distress.
Nail biting is an oral habit of biting one's fingernails, which can be a sign of anxiety, stress or other disorders. It can lead to infections, dental problems, social stigma and low self-esteem. Learn about the signs, symptoms, related disorders and treatment options for nail biting.
Coffin–Lowry syndrome is an X-linked disorder resulting from loss-of-function mutations in the RPS6KA3 gene, which encodes RSK2 (ribosomal S6 kinase 2).Multiple mutations have been identified in RPS6KA3 that can give rise to the disorder, including missense mutations, nonsense mutations, insertions and deletions.
Timothy syndrome is a rare genetic disorder that causes heart problems, syndactyly, and autism. It is caused by mutations in the CACNA1C gene that affect calcium channel function.
Apert syndrome is a genetic disorder that causes malformations of the skull, face, hands and feet. It is a type of acrocephalosyndactyly, affecting the first branchial arch, and has three types of hand deformities: spade, mitten and rosebud.