A symptoms of bipolar disorder in children is trouble sleeping.
  • Bipolar disorder is less common in children, but it still affects an estimated 3% of Americans between 13 and 18 years old.
  • Children with bipolar disorder may exhibit symptoms like trouble sleeping, difficulty focusing, unprovoked sadness, self-isolation, and more.
  • Symptoms of bipolar disorder are different in children than adults, which is why children are often misdiagnosed as ADHD, major depression, anxiety, and conduct disorders.
  • This article was medically reviewed by Mayra Mendez, PhD, LMFT, a psychotherapist and program coordinator for intellectual and developmental disabilities and mental health services at Providence Saint John's Child and Family Development Center.
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On average, people start to show symptoms of bipolar disorder at age 25. However, the mental health condition can affect people of all ages — including teenagers and children. 

It is a misconception that bipolar disorder is rare in children. Rather, the disorder is often misdiagnosed in youths as ADHD or depression because these conditions exhibit similar symptoms.  

Can children have bipolar disorder? Yes, but it's uncommon

About 4% of US adults are estimated to experience bipolar disorder at some point in their lives. That number drops to about 3% in American adolescents between the ages of 13 to 18, making the disorder less common in young people, but not necessarily rare. 

In children, the condition is classified as early-onset bipolar disorder. While bipolar is more commonly diagnosed in older children and teens, it has been diagnosed in children as young as five

Anandhi Narasimhan, MD, a board-certified psychiatrist with a private practice in Westwood, Los Angeles, says that risk factors that can increase a child or teen's risk of developing early-onset bipolar disorder include:

For example, if one parent is bipolar, a child's risk of having it is 15% to 30%. When two parents have it, the risk level increases to 50% to 70%. 

Unless a child has a strong family history of bipolar disorder, it can be hard to diagnose it or differentiate it from other disorders like ADHD or depression, says Lea Lis, MD, a board-certified psychiatrist with a clinical practice in Southampton, New York. That's because symptoms in children are often not as pronounced as those in adults. 

"The full spectrum of the illness really does not develop until the brain is fully formed as an adult," says Lis.

Symptoms of bipolar disorder in children 

Children with bipolar disorder will experience discrete episodes of depression and mania, the same as adults. However, children will not always exhibit symptoms in the same manner as adults, with their symptoms often being less pronounced. 

For example, intense manic episodes involving risky behavior are usually less common and severe in children than adults, says Lis. Although, depressive episodes may be more frequent. 

Children with bipolar disorder also experience rapid cycling more often than adults. Rapid cycling is when a person has four or more mood episodes a year. In adults, episodes may last days or weeks, whereas a child may move between depressed and manic moods much quicker — even within a day, says Lis.  

According to Jill Weinstein, a child mental health expert at the Berman Center Clinical Director of Evolve, symptoms of mania in children include: 

When a child with bipolar disorder has a depressive episode they tend to appear more irritable than adults. Weinstein says symptoms of a depressive episode in children include: 

Recognising bipolar symptoms in children 

Because bipolar symptoms present themselves differently in children and teens, it is often misdiagnosed as ADHD, major depression, anxiety, and conduct disorders, says Weinstein. 

Common symptoms of ADHD and bipolar disorder include hyperactivity, irritability, distractibility, impulsivity, and difficulty sleeping. However, with ADHD, these symptoms will persist, whereas a child with bipolar disorder may exhibit them for a period of time before they disappear as the episode ends. 

While every child and teen may experience mood swings brought on by factors such as puberty, changes in mood due to bipolar disorder will be more extreme and widespread. For bipolar disorder, Lis says mood swings should be consistent and ongoing and are associated with risk behaviors like skipping school and misusing drugs and alcohol.

Episodes are also associated with grandiosity that goes beyond "just a little teenage showing off." A child or teen with bipolar disorder will direct moodiness to people beyond their parents, such as to teachers or friends.

Due to the symptoms of bipolar disorder overlapping with other disorders common in children like ADHD and anxiety, Weinstein explains an extensive evaluation must be completed by a mental health professional to ensure a correct diagnosis. 

How can I help my child or teen? 

If you believe your child may have bipolar disorder, carefully review symptoms of early-onset bipolar disorder to see if they align with the behavior exhibited by your child.

Diagnosis 

Some good questions to ask yourself are: 

  • Is my child noticeably more excitable or irritable than others their age? 
  • Does my child go through periods of extreme highs and lows? 
  • Do these behaviors interfere with my child's daily life? 
  • Is my child engaging in risky behaviors like misusing drugs and alcohol or skipping school? 

If you answered yes to any of those questions or are still unsure, Weinstein recommends bringing your child to a mental health professional for further evaluation.

Before going to the evaluation it's important to be open with your child. Encourage them to talk about their concerns with you and the doctor. Most importantly, listen to what they have to say, and remind them that treatment may help however they are feeling. 

Treatment

Treatment options for children with bipolar disorder are similar to adults in that it usually involves some combination of medication and therapy. Like adults, children with bipolar may be prescribed mood stabilizers, like lithium, but in lower doses. Parents should look out for side effects of medication and alert their child's doctor immediately if any appear such as nausea or severe tremors

Counseling such as cognitive behavioral therapy and family-focused therapy is also recommended for children with bipolar disorder. Family-focused therapy also allows you as a parent to learn more about the disorder and what you can do to help.

Sleep is also paramount in regulating bipolar disorder and in preventing relapses, says Lis. Helping your child create and maintain a healthy sleep schedule can go a long way towards managing the disorder.

Parents can also support their children by learning triggers that activate episodes, encouraging open communication between themselves and the child, being aware of their child's mood changes, and explaining the benefits of interventions such as medication. 

The bottom line 

Although the average age of onset for bipolar is 25, children as young as five can still be diagnosed with the disorder. Children with bipolar may experience more rapid cycling and depressive episodes than adults.

While mood swings are common in all teenagers, reach out to a professional if your child's temperament is impeding on their everyday life functioning and relationships. Bipolar disorder is a life-long condition, and it can be successfully managed through medications and therapy. 

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