Rare Behavioral Disorders in Children: Symptoms and Genetic Insights

rare behavioral disorders

The most common rare behavioral disorders

Rare behavioral disorders are rare diseases defined by the presence of behavioral issues in individuals. 

Behavioral issues usually involve behavior that deviates from what is considered normal behavior. Generally, to be classed as abnormal, this behavior must include more than one behavioral issue, last for longer than six months, and be noticed in various settings and environments. 

Specific behavioral disorders include oppositional defiant disorder, conduct disorder, and attention deficit hyperactivity disorder.

Rare behavioral disorders are rare diseases, or genetic syndromes, which include behavioral issues amongst their symptoms. They are often first diagnosed in childhood, and some of them are recognized as common genetic disorders in children. 

Examples

  1. Angelman syndrome

Angelman is a rare genetic syndrome affecting an individual’s development, specifically their ability to walk. Individuals with Angelman experience different kinds of behavioral issues, including difficulty sleeping, as well as frequent laughing and smiling. Very few people with Angelman develop the ability to speak.

2. Pitt-Hopkins syndrome

As a behavioral disorder, Pitt-Hopkins shares similar symptoms with Angelman syndrome. Behavioral issues with this syndrome are common and widely recognized as a main symptom, and many individuals with this genetic condition do not develop the ability to speak. Intellectual disability and developmental delay are also common. 

3. Lujan Fryns syndrome

Lujan-Fryns presents with some severe behavioral issues. These specifically include hyperactivity, aggression, intense shyness, and social anxiety. At the same time, attention-seeking behaviors are also common with the syndrome. Some individuals with this behavioral disorder are also diagnosed with autism spectrum disorder, which in turn can make it difficult for them to communicate and socialize with others. In some instances affected individuals experience hallucinations and delusions. 

4. Cri-du-chat syndrome

This rare behavioral disorder is known for its behavioral issues. The most common of these include self-injurious behavior, which is any behavior in which an individual intentionally hurts themselves. Examples of this include biting oneself, hitting oneself with an object, or hitting oneself against another object. 

5. Rett syndrome

This rare behavioral disorder occurs almost exclusively in girls, with males affected rarely surviving past infancy due to the severity of their symptoms. Symptoms and behavioral issues related to this syndrome are severe and tend to get worse with time. Behavioral issues include autistic-like behaviors, including repetitive hand movements, and difficulties with communication. 

6. Glass syndrome

This rare behavioral disorder includes behavioral issues such as hyperactivity, and aggressive tendencies in affected individuals. Individuals with this genetic condition often have an over-friendly personality, despite their aggressive tendencies. Intellectual disability and limited-zero speech development also characterize this genetic syndrome. 

Rare behavioral disorders are characterized by the complexity of their symptoms, and the similarities between sets of symptoms with each condition can complicate the genetic diagnosis process. 

For an accurate and timely diagnosis, genetic counselors are invaluable in placing an individual’s behavioral issues within the context of a rare disease. Based on these symptoms they can recommend specific genetic tests that can provide important knowledge about each of these rare behavioral disorders, and provide insight into what life with each might look like.

We recommend using our Child Development Checker app, an invaluable AI tool that allows you to assess developmental delays and potential genetic concerns right at home. This user-friendly app can help you monitor your child’s progress and identify any red flags early on. Additionally, take advantage of the “Connect to Expert” feature to get personalized support from genetic professionals. They can provide tailored advice, recommend appropriate genetic tests, and offer guidance on managing the complexities of rare behavioral disorders. Together, these resources can empower you to take proactive steps in supporting your child’s unique developmental journey.  

 

Evaluation

Don’t let your questions stay questions

Ease your concerns, gain a better understanding of your child’s development process, and connect with medical professionals in your area.

Related articles

Rare Diseases
Rare Genetic Syndromes and Their Impact on Child Development 

Rare Genetic Syndromes and Their Impact on Child Development 

There may be many obstacles along the way, including: Lack of access to the right medical attention, specialists, and care. Lack of access to the right information about the possible genetic syndrome or rare disease the family faces. The possibility of misdiagnosis. Being stranded in a diagnostic journey, unsure of where and how to access the right information or medical specialists and testing to reach a diagnosis. Lack of support as the family navigates a new reality and future.

Read more
Rare Diseases
extremely rare conditions

Extremely Rare Conditions

All rare diseases and conditions are, as the name suggests, rare. However some are more rare than others. In the US, a rare disease is defined as one that affects less than 200,000 in the entire country. However, each rare disease has its own prevalence rate, and some are extremely rare with just a handful, or sometimes only 1-2, of individuals affected globally.

Read more
Rare Diseases
diseases that run in families

Diseases That Run in Families

Diseases that run in families are also known as inherited diseases. Some of these have clear genetic causes – and are the result of a specific gene mutation that is inherited in a specific way – others have more complicated causes, including a combination of genetic and environmental reasons.

Read more