Puberty is usually delayed, and males may have undescended testicles and a small penis . Adult height is usually decreased. Testing will depend on the symptoms present. For example, if there are signs of heart disease, an ECG or chest X-ray may be recommended. There is no single treatment for Noonan syndrome.
Treatment focuses on the problems that occur.
The expected outcome depends on the extent and severity of symptoms that are present. Mental retardation , if present, is usually mild. Prevention People with a family history of Noonan syndrome may want to consult with their health care provider before having children, although at this time there are no tests to detect the tendency for this disorder. The information provided herein should not be used for diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions.