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Symptoms of attention deficit hyperactivity disorder (ADHD)

The symptoms of attention deficit hyperactivity disorder (ADHD) can be categorised into 2 types of behavioural problems:

inattentiveness (difficulty concentrating and focusing)

hyperactivity and impulsiveness

Many people with ADHD have problems that fall into both these categories, but this is not always the case.

For example, around 2 to 3 in 10 people with the condition have problems with concentrating and focusing, but not with hyperactivity or impulsiveness.

This form of ADHD is also known as attention deficit disorder (ADD). ADD can sometimes go unnoticed because the symptoms may be less obvious.

ADHD is more often diagnosed in boys than girls. Girls are more likely to have symptoms of inattentiveness only, and are less likely to show disruptive behaviour that makes ADHD symptoms more obvious. This means girls who have ADHD may not always be diagnosed.

Symptoms in children and teenagers

The symptoms of ADHD in children and teenagers are well defined, and they're usually noticeable before the age of 6. They occur in more than 1 situation, such as at home and at school.

Children may have symptoms of both inattentiveness and hyperactivity and impulsiveness, or they may have symptoms of just 1 of these types of behaviour.

Inattentiveness (difficulty concentrating and focusing)

The main signs of inattentiveness are:

having a short attention span and being easily distracted

making careless mistakes - for example, in schoolwork

appearing forgetful or losing things

being unable to stick to tasks that are tedious or time-consuming

appearing to be unable to listen to or carry out instructions

constantly changing activity or task

having difficulty organising tasks

Hyperactivity and impulsiveness

The main signs of hyperactivity and impulsiveness are:

being unable to sit still, especially in calm or quiet surroundings

constantly fidgeting

being unable to concentrate on tasks

excessive physical movement

excessive talking

being unable to wait their turn

acting without thinking

interrupting conversations

little or no sense of danger

These symptoms can cause significant problems in a child's life, such as underachievement at school, poor social interaction with other children and adults, and problems with discipline.

Related conditions in children and teenagers with ADHD

Although not always the case, some children may also have signs of other problems or conditions alongside ADHD, such as:

anxiety disorder - which causes your child to worry and be nervous much of the time; it may also cause physical symptoms, such as a rapid heartbeat, sweating and dizziness

oppositional defiant disorder (ODD) - this is defined by negative and disruptive behaviour, particularly towards authority figures, such as parents and teachers

conduct disorder - this often involves a tendency towards highly antisocial behaviour, such as stealing, fighting, vandalism and harming people or animals

depression

sleep problems - finding it difficult to get to sleep at night, and having irregular sleeping patterns

autistic spectrum disorder (ASD) - this affects social interaction, communication, interests and behaviour

dyspraxia - a condition that affects physical co-ordination

epilepsy - a condition that affects the brain and causes repeated fits or seizures

Tourette's syndrome - a condition of the nervous system, characterised by a combination of involuntary noises and movements (tics)

learning difficulties - such as dyslexia

Symptoms in adults

In adults, the symptoms of ADHD are more difficult to define. This is largely due to a lack of research into adults with ADHD.

As ADHD is a developmental disorder, it's believed it cannot develop in adults without it first appearing during childhood. But symptoms of ADHD in children and teenagers often continue into adulthood.

The way in which inattentiveness, hyperactivity and impulsiveness affect adults can be very different from the way they affect children.

For example, hyperactivity tends to decrease in adults, while inattentiveness tends to remain as the pressures of adult life increase.

Adult symptoms of ADHD also tend to be far more subtle than childhood symptoms.

Some specialists have suggested the following as a list of symptoms associated with ADHD in adults:

carelessness and lack of attention to detail

continually starting new tasks before finishing old ones

poor organisational skills

inability to focus or prioritise

continually losing or misplacing things

forgetfulness

restlessness and edginess

difficulty keeping quiet, and speaking out of turn

blurting out responses and often interrupting others

mood swings, irritability and a quick temper

inability to deal with stress

extreme impatience

taking risks in activities, often with little or no regard for personal safety or the safety of others - for example, driving dangerously

Related conditions in adults with ADHD

As with ADHD in children and teenagers, ADHD in adults can occur alongside several related problems or conditions.

One of the most common is depression. Other conditions that adults may have alongside ADHD include:

personality disorders - conditions in which an individual differs significantly from the average person in terms of how they think, perceive, feel or relate to others

bipolar disorder - a condition affecting your mood, which can swing from one extreme to another

obsessive compulsive disorder (OCD) - a condition that causes obsessive thoughts and compulsive behaviour

The behavioural problems associated with ADHD can also cause problems such as difficulties with relationships and social interaction.

Page last reviewed: 24 December 2021
Next review due: 24 December 2024

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Attention deficit hyperactivity disorder (ADHD) - Symptoms

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Read about symptoms of attention deficit hyperactivity disorder (ADHD), which are categorised into inattentiveness, hyperactivity and impulsiveness.

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Children with attention-deficit/hyperactivity disorder (ADHD) experience more obstacles in their path to success than the average student. The symptoms of ADHD, such as inability to pay attention, difficulty sitting still, and difficulty controlling impulses, can make it hard for children with this diagnosis to do well in school.

Classroom treatment strategies for ADHD students

There are some school-based management strategies shown to be effective for ADHD students:

Behavioral classroom management

The behavioral classroom management approach encourages a student's positive behaviors in the classroom, through a reward system or a daily report card, and discourages their negative behaviors. This teacher-led approach has been shown to influence student behavior in a constructive manner, increasing academic engagement. Although tested mostly in elementary schools, behavioral classroom management has been shown to work for students of all ages.

Organizational training

Organizational training teaches children time management, planning skills, and ways to keep school materials organized in order to optimize student learning and reduce distractions. This management strategy has been tested with children and adolescents.

Teaching and supporting positive behavior‎

These two management strategies require trained staff-including teachers, counselors, or school psychologists-to follow a specific plan to teach and support positive behavior.

Special education services and accommodations

Most children with ADHD receive some school services, such as special education services and accommodations. There are two laws that govern special services and accommodations for children with disabilities:

The Individuals with Disabilities Education Act (IDEA)

Section 504 of the Rehabilitation Act of 1973

Learn more about IDEA vs Section 504
The support a child with ADHD receives at school will depend on if they meet the eligibility requirements for one of two federal plans funded by IDEA and Section 504:

What are the main differences between an IEP and a 504 Plan?‎

* IEPs: Provide individualized special education services to meet the unique needs of the child and is governed under the Federal law known as the Individuals with Disabilities Education Act (IDEA).

* 504 Plan: Provides services and changes to the learning environment to meet the needs of the child as adequately as other students and is part of Section 504 of the Rehabilitation Act.

Accommodations

IEPs and 504 Plans can offer accommodations for students to help them manage their ADHD, including the following:

Extra time on tests

Instruction and assignments tailored to the child

Positive reinforcement and feedback

Using technology to assist with tasks

Allowing breaks or time to move around

Changes to the environment to limit distraction

Extra help with staying organized

Did you know?‎

Parents of children with ADHD report receiving more services through an IEP than through a 504 plan.

There is limited information about which types of accommodations are effective for children with ADHD. However, there is evidence that setting clear expectations, providing immediate positive feedback, and communicating daily with parents through a daily report card can help.

What teachers can do to help

For teachers, helping children manage their ADHD symptoms can present a challenge. Most children with ADHD are not enrolled in special education classes but do need extra assistance on a daily basis.

Helping students with ADHD‎

CHADD's National Resource Center on ADHD provides information for teachers from experts on how to help students with ADHD.

Close collaboration between the school, parents, and healthcare providers will help ensure the child gets the right support. Here are some tips for classroom success:

Communication

Give frequent feedback and attention to positive behavior.

Be sensitive to the influence of ADHD on emotions, such as self-esteem issues or difficulty regulating feelings.

Provide extra warnings before transitions and changes in routines.

Understand that children with ADHD may become deeply absorbed in activities that interest them (hyper-focus) and may need extra assistance shifting their attention.

Assignments and tasks

Make assignments clear-check with the student to see if they understand what they need to do.

Provide choices to show mastery (for example, let the student choose among written essay, oral report, online quiz, or hands-on project.

Make sure assignments are not long and repetitive. Shorter assignments that provide a little challenge without being too hard may work well.

Allow breaks-for children with ADHD, paying attention takes extra effort and can be very tiring.

Allow time to move and exercise.

Minimize distractions in the classroom.

Use organizational tools, such as a homework folder, to limit the number of things the child has to track.

Develop a plan that fits the child

Observe and talk with the student about what helps or distracts them (for example, fidget tools, limiting eye contact when listening, background music, or moving while learning can be beneficial or distracting, depending on the child).

Communicate with parents on a regular basis.

Involve the school counselor or psychologist.

Parent education and support

How to best advocate for your child‎

What every parent should know

School support and services are regulated by laws. The U.S. Department of Education has developed a "Know your rights" letter for parents and a resource guide for educators to help educators, families, students, and other interested groups better understand how these laws apply to students with ADHD so that they can get the services and education they need to be successful.

Healthcare providers also play an important part in collaborating with schools to help children get the special services they need.

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ADHD in the Classroom: Helping Children Succeed in School

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Resources for parents, teachers, and healthcare providers to help children with ADHD succeed in the school.

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Teaching Students with ADHD - HelpGuide.org

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Dealing with ADHD in the classroom? These tips for teachers will help you overcome common challenges.