What Is a Developmental Delay? Understanding Early Signs, Support & Why It Matters in March

This March, gain insight into developmental delays, milestones to watch for, and how families can access early support to help children thrive.

By Sydney Zielinski (Kerelo) 

March is Developmental Disabilities Awareness Month, a time to raise awareness, promote inclusion, and help families understand the importance of early identification and support. If you’ve ever wondered whether your child is developing “on track,” you’re not alone. Many parents have questions about milestones and what it means if a child develops differently.

According to the U.S. Centers for Disease Control and Prevention, recent data show that approximately 8.6 percent, or nearly 1 in 11, children ages 3 to 17 have been diagnosed with a developmental disability, including autism spectrum disorder, intellectual disability, or other developmental delays. In addition, the CDC’s Autism and Developmental Disabilities Monitoring Network reports that about 1 in 31 eight-year-old children were identified with autism spectrum disorder in 2022, with boys continuing to be diagnosed at higher rates than girls. Understanding what that means — and what you can do — is an important first step.

What is a Developmental Delay?

A developmental delay occurs when a child does not meet expected milestones in one or more areas of development. Milestones include skills such as smiling, sitting up, walking, talking, problem-solving, and interacting with others.

Delays can affect several areas, including:

  • Speech and Language – Limited vocabulary, difficulty forming words, trouble understanding simple directions, or not responding to their name.

  • Motor Skills – Delays in rolling over, crawling, walking, balance, or fine motor tasks like picking up small objects.

  • Cognitive Development – Difficulty learning new skills, following simple instructions, or engaging in age-appropriate play.

  • Social and Emotional Skills – Limited eye contact, difficulty engaging with caregivers or peers, or challenges expressing emotions.

  • Adaptive Skills – Trouble with daily routines such as feeding, dressing, or using utensils.

Every child develops at their own pace, but consistent delays across milestones may signal the need for additional support.

Signs Parents Should Watch For

While development varies, some signs that may indicate a delay include:

  • Not babbling or gesturing by 12 months

  • Not walking by 18 months

  • Limited interest in social interaction

  • Difficulty following simple directions

  • Losing skills they previously had

If you notice these signs, trust your instincts. You know your child best.

Emma Cherill / Photo courtesy of Angela Cherill
Emma Cherill / Photo courtesy of Angela Cherill
ELC-firetruck-developmental delay
KenCrest's Early Learning Center students learning about firetrucks. // Photo courtesy of KenCrest

What Should You Do If You're Concerned?

Start by talking with your child’s pediatrician, who will request a developmental screening to determine whether your child is learning essential skills at the right time or if issues are occurring and they need additional evaluations or treatments. Depending on the doctor's concerns, the child may be referred to an early interventionist to get access to a hearing, speech, occupational, physical, or neurological therapist.

 KenCrest’s Early Intervention (EI) program supports children from birth to age three who have developmental delays or are at risk for delays. Services are provided in natural environments such as your home or childcare setting and may include speech therapy, occupational therapy, physical therapy, and specialized instruction.

Most importantly, Early Intervention is family-centered. Parents and caregivers are active partners, learning strategies to support their child’s growth during everyday routines. Research consistently shows that early support can improve communication, mobility, social skills, and overall confidence.

But at the end of the day, know that you are not alone. Developmental Disabilities Awareness Month reminds us that early identification leads to stronger outcomes and that support is available. If you have concerns about your child’s development, reaching out early can make a meaningful difference in their future.

Parents in Pennsylvania with questions or concerns about their child’s development may call the CONNECT Helpline at 1-800-692-7288 or visit the Pennsylvania Department of Education’s website. Parents whose child qualifies for Early Intervention services can request KenCrest as their provider through their county.

Parents in Delaware with questions or concerns about their child’s development may call their respective county’s early intervention helpline, New Castle County at 302-283-7240 or 1-800-671-0050, and Kent/Sussex Counties at 302-424-7300 or 1-800-752-9393. Families can also visit the Delaware Health and Social Services website.

Let's Keep in Touch

Join the KenCrest team and stay updated on the latest news in the disability community, inspiring stories, and ways you can help us make a difference in the lives of people with an intellectual or developmental disability.