Signs Your Child May Have ADHD
Last reviewed: March 2026
Written by: School of Diversity SEND Support Team
Topic: ADHD and Child Development
This guide explains common signs of ADHD in children, including attention, behaviour and activity levels, and what these signs may mean for your child.
Signs of ADHD in children may include difficulty focusing, impulsive behaviour and high levels of activity. These behaviours can affect learning, relationships and daily routines.
Key Takeaways
- ADHD can affect attention, behaviour and activity levels.
- Signs may appear at home, school or in social situations.
- Children may show patterns of inattention, impulsivity or hyperactivity.
- Signs can vary between children.
- Understanding early signs can help parents explore support options.
Many parents begin exploring ADHD when they notice differences in their child’s behaviour, attention or activity levels. These differences may affect learning, routines and relationships.
Understanding common signs of ADHD can help parents recognise patterns and decide whether to seek further advice or assessment.
What Are the Signs of ADHD?
Direct answer:
Signs of ADHD typically relate to attention, impulsivity and activity levels.
These may include:
- difficulty focusing on tasks
- impulsive actions
- high levels of activity
- challenges following instructions
- difficulty staying organised
Not all children will show the same patterns.
Signs of Inattention
Direct answer:
Children with ADHD may find it difficult to focus or sustain attention.
Signs may include:
- difficulty concentrating on tasks
- being easily distracted
- forgetting instructions
- losing items regularly
- difficulty completing tasks
These behaviours may affect learning and daily routines.
Signs of Hyperactivity
Direct answer:
Some children may show high levels of activity.
This may include:
- difficulty sitting still
- constant movement or fidgeting
- talking frequently
- difficulty staying seated in class
Activity levels may be higher than expected for age.
Signs of Impulsivity
Direct answer:
Impulsivity relates to acting without thinking.
Children may:
- interrupt others
- struggle to wait their turn
- act quickly without considering consequences
- find it difficult to follow rules
This can affect social interactions and behaviour in school.
Signs at Home vs School
Direct answer:
ADHD behaviours may appear differently depending on the environment.
At home, parents may notice:
- difficulty following routines
- emotional outbursts
- high energy levels
At school, teachers may notice:
- difficulty concentrating
- challenges completing work
- impulsive behaviour
Understanding these differences can help build a clearer picture.
When Do Signs of ADHD Usually Appear?
Signs of ADHD often appear in early childhood, but they may become more noticeable when:
- children start school
- expectations increase
- structured learning is required
Some children may not be identified until later.
Do All Children Show the Same Signs?
Direct answer:
No. ADHD can present differently in each child.
Some children may mainly show:
- inattention
- hyperactivity
- impulsivity
Others may show a combination of these.
What Should Parents Do If They Notice These Signs?
Direct answer:
If parents notice patterns that affect daily life or learning, they may consider seeking advice.
This may include:
- speaking to the child’s school
- discussing concerns with a GP
- exploring an assessment
Understanding next steps can help parents access support.
ADHD and School Support
Children do not need a diagnosis to receive support in school.
Schools may provide:
- SEN support
- classroom strategies
- structured learning support
ADHD Assessment
Direct answer:
An assessment may help understand a child’s needs and whether ADHD is present.
➡ ADHD Assessment for Children
➡ What Happens During an ADHD Assessment
ADHD and EHCP Support
Some children may require additional support.
FAQ
What age do ADHD signs appear?
Signs often appear in early childhood but may become more noticeable at school age.
Can children grow out of ADHD?
ADHD can change over time, but support may still be needed.
Do all children with ADHD show hyperactivity?
No. Some children mainly show inattention.
Should I speak to school first?
Many parents begin by discussing concerns with their child’s school.
Explore More ADHD Guidance
You may find these guides helpful:
- ADHD Assessment for Children
- What Happens During an ADHD Assessment
- ADHD Diagnosis and School Support
- Supporting Children with ADHD in School
- EHCP for ADHD
You can also explore our ADHD Support for Parents hub, which explains signs, assessments and school support in more detail.