Early Signs and Symptoms of Muscular Dystrophy in Children
Written by the Muscular Dystrophy Pakistan (MDP) content team. Based on information from NINDS, MedlinePlus Genetics and a paediatrics textbook from the University of Hawaii (see sources below). Last updated: October 6, 2026.
Most children with muscular dystrophy look completely healthy at birth, and their parents often notice only small things at first: a toddler who falls more than others, a child who walks late, or a boy who struggles on the stairs. These small signs are easy to miss, and in many families they are explained away as "he is just lazy" or "he will grow out of it". This guide explains the early signs and symptoms of muscular dystrophy in children, what is normal and what is not, and what to do if you are worried.
Quick facts
- Duchenne muscular dystrophy, the most common childhood type, usually shows clearer signs between ages 2 and 5.
- Common early signs are late walking, frequent falls, a waddling walk, walking on toes, and difficulty climbing stairs or getting up from the floor.
- Large-looking calf muscles can be a sign, even though the child looks strong.
- Some other types start in infancy ("floppy" baby) or later in childhood.
- A simple blood test called CPK can point to a muscle problem, so any child with these signs should see a doctor.
Why Early Signs Matter
Muscular dystrophy cannot be seen by looking at a baby. Weakness develops slowly, and children are good at finding ways around it. A child who finds running hard may simply stop running. A child who cannot climb stairs easily may ask to be carried. Because of this, the diagnosis is often delayed for years after the first signs.
Finding it early does not change the genes, but it allows the right monitoring and treatment decisions, avoids wrong treatments, and lets the family receive genetic counselling. It also puts an end to the confusion and self-blame that many parents feel while waiting for answers.
Early Signs in Babies and Toddlers
- Delay in motor milestones: Late sitting, standing or walking. Most children walk at around 12 months. A child who is not walking independently by 18 months should be checked by a doctor.
- Frequent falls: Falling much more often than other children of the same age, or tripping on flat ground.
- Clumsy or waddling walk: The child sways from side to side while walking, or walks with the feet far apart.
- Toe walking: Walking on the toes or the balls of the feet most of the time.
- Difficulty with stairs: Needing to hold on, or pulling up one step at a time, long after other children manage.
- Trouble running or jumping: Cannot run properly, or cannot jump with both feet.
- Speech or learning delay: Some boys with Duchenne also have delayed speech or learning difficulties.
Signs in Young Children (3 to 6 Years)
- Gowers' sign: To stand up from the floor, the child first turns onto the stomach, pushes up onto hands and knees, and then "climbs up" his own legs with the hands. This is often seen from around age 4 to 5.
- Large-looking calf muscles: The calves look big and strong, but the muscle is actually being replaced by fat and scar tissue and is weak.
- Tiredness: The child tires quickly, sits down during play, or asks to be carried on short walks.
- Leg pain or cramps: Complaints of aching legs after normal play.
- Stiff ankles or tight heels: Walking on toes can become more fixed over time.
A Quick Age Guide
| Age | Usually expected | Ask a doctor if |
|---|---|---|
| Birth to 1 year | Holds head up, sits, moves arms and legs actively | The baby feels very floppy, has weak movement, poor head control or feeding difficulty |
| 12 to 18 months | Stands and walks on their own | Not walking by 18 months |
| 2 to 3 years | Runs, climbs stairs, jumps a little | Falls often, cannot run, tires quickly, walks on toes |
| 3 to 5 years | Jumps, rises from the floor easily, plays actively | Waddling walk, large calves, uses hands to push up the legs |
| School age | Keeps up with classmates in games and sports | Cannot keep up, leg pain, increasing difficulty with stairs, falls behind in physical activity |
This table is only a general guide. Children develop at their own pace, and one late milestone does not mean muscular dystrophy. But several signs together, or a child who is getting weaker instead of stronger, always deserve a medical check.
Signs of Other Types of Muscular Dystrophy in Children
- Becker muscular dystrophy: Similar to Duchenne but usually milder and starting later, often in later childhood or the teenage years.
- Congenital muscular dystrophy: Weakness appears at birth or in the first months: a floppy baby, delayed motor milestones, sometimes joint stiffness.
- Limb-girdle muscular dystrophy: Weakness of the hips and shoulders, difficulty climbing stairs or lifting the arms. It can start in childhood or later.
- Emery-Dreifuss muscular dystrophy: Tight joints (elbows, ankles, neck) together with muscle weakness, usually in childhood or the teenage years.
- FSHD: Usually begins in the teenage years with weakness of the face and shoulders.
You can read more about each type in our complete guide to muscular dystrophy.
Is It Muscular Dystrophy? Other Causes to Know About
Many children walk on their toes for a while, fall often while learning to run, or walk a little later than their siblings, and most of them are healthy. Other conditions, such as vitamin deficiencies, foot or hip problems, and other muscle or nerve conditions, can also cause similar signs. That is exactly why parents should not guess. A doctor can examine the child and, if needed, order a CPK blood test and refer to a specialist. The point is not to cause fear, but to check, because waiting costs time.
What Should You Do If You Are Worried?
- Do not wait and watch for years. If you notice several of the signs above, book a visit with a paediatrician or paediatric neurologist.
- Record a short video. Film your child walking, running, climbing stairs and getting up from the floor. Videos help the doctor see what you see at home.
- Ask about a CPK test. It is a simple blood test. A very high result suggests a muscle problem, and the doctor will decide the next steps, which may include genetic testing.
- Note the family history. Write down any boys, uncles or cousins on the mother's side, or any relatives in the family with similar weakness or who walked late.
- Do not rely on vitamins or "miracle" treatments. Vitamins and tonics do not treat muscular dystrophy, and delaying the right tests can cost valuable time.
- Look after yourself too. Waiting for results is stressful. It is not your fault, and you are not alone.
What Will the Doctor Do?
The doctor will ask about your child's milestones and family history, check muscle strength, the way your child walks and stands up, and the calf muscles, and may ask for blood tests, especially CPK. If the results suggest a muscle problem, a genetic test is usually the next step, because it confirms the exact type.
Early Signs and Families in Pakistan
In Pakistan, parents often hear "wait a little" or "give more milk and vitamins" before anyone thinks of muscular dystrophy. Teachers and school staff can also help: a child who cannot keep up in play, falls repeatedly or struggles with stairs may need a medical check, not scolding. If a boy in the family has been diagnosed, younger brothers and boy cousins on the mother's side should be watched closely and talk to a doctor. We discuss the bigger picture in our article Muscular Dystrophy in Pakistan: Prevalence, Challenges and Awareness.
Frequently Asked Questions
At what age do the signs of muscular dystrophy start?
It depends on the type. Congenital types show at birth or in infancy, Duchenne usually shows clearer signs between ages 2 and 5, and some types start later in childhood, the teenage years or adulthood.
My child walks on his toes. Does he have muscular dystrophy?
Not necessarily. Many healthy children walk on their toes for a while. But if toe walking is constant, or comes together with frequent falls, a waddling walk, large calves or difficulty with stairs, ask a doctor about it.
My child is strong and has big calves. Why would that be a problem?
In some types, especially Duchenne, the calves look big because muscle is replaced by fat and scar tissue. The calf looks strong, but it is actually weak.
What is Gowers' sign?
It is the way a child with weak hip and thigh muscles stands up from the floor: turning on the stomach, pushing up with the hands, and then using the hands to "climb" up the legs.
Can girls have these signs?
Yes. Some types affect boys and girls equally. In X-linked types such as Duchenne and Becker, boys are mostly affected, and a few girls who are carriers may have mild symptoms.
Which doctor should I see first?
Start with a paediatrician, who can order a CPK test and refer you to a paediatric neurologist or neurologist if needed.
Trust Your Instincts, Ask Early
Parents know their children best. If something does not feel right, if your child seems to be getting weaker, falls too often or cannot do what others of the same age can, do not let anyone talk you out of asking for a proper check. Early answers give families time, options and support. Follow the MDP blog for our upcoming guides on each type of muscular dystrophy, and share this article with a parent or teacher who may need it.
Sources and Further Reading
- National Institute of Neurological Disorders and Stroke (NINDS), Muscular Dystrophy information page
- MedlinePlus Genetics, Duchenne and Becker muscular dystrophy
- University of Hawaii Department of Pediatrics, Case Based Pediatrics: Muscular Dystrophy
Medical disclaimer: This article is for awareness and education only. It is not a substitute for professional medical advice, diagnosis or treatment. If you are worried about your child's health, please consult a qualified doctor.
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