"Smiling baby syndrome" is not a recognized medical term. It is likely that you are referring to Angelman syndrome, a genetic disorder characterized by developmental delays, intellectual disability, and a happy, excitable demeanor with frequent smiling, laughter, and hand-flapping movements.
Key features of Angelman syndrome include:
- Developmental delays: Children with Angelman syndrome typically have delays in reaching developmental milestones, such as walking and talking.
- Intellectual disability: Individuals with Angelman syndrome have a range of intellectual disabilities.
- Characteristic facial features: These may include a wide mouth, a prominent jaw, and a protruding tongue.
- Seizures: Seizures are common in Angelman syndrome.
- Happy and excitable demeanor: People with Angelman syndrome often have a happy and excitable personality, with frequent smiling and laughter.
- Movement and balance problems: Individuals with Angelman syndrome may have difficulties with balance and coordination.
- Speech difficulties: Speech is typically delayed and limited.
If you suspect that a child may have Angelman syndrome, it is important to consult with a doctor for diagnosis and treatment.
