Growing Pains in Children: Causes, Myths, and When to See an Osteopath

It’s a familiar story for many parents: your child is happy and active all day, but as bedtime approaches, they start to complain of aching legs. Sometimes, the discomfort is strong enough to wake them during the night. These episodes are often labelled as growing pains — a common but widely misunderstood part of childhood development.

While most growing pains are harmless and self-limiting, they can still cause significant disruption to a child’s sleep, comfort, and confidence. And in some cases, what’s thought to be “just growing pains” might actually be a sign of something else. Knowing when to watch, when to reassure, and when to seek support can make a big difference.

At One Health Osteopathy Clinic in Tunbridge Wells, Kent, we regularly see children experiencing night-time leg pain and help parents understand what’s normal, when to investigate further, and how osteopathy can support healthy growth. If you’re also concerned about how your child walks or stands, you may find our guide on flat feet, in-toeing, and gait issues in children useful, too.

What Are Growing Pains?

Despite the name, growing pains aren’t directly caused by bones growing too quickly. In fact, we still don’t fully understand why they occur. What we do know is that they’re very common — affecting up to 30% of children at some stage — and they usually appear between the ages of 3 and 12.

Typical features include:

• Aching, throbbing, or cramping pain in the calves, thighs, or behind the knees
• Pain that occurs in the evening or at night, often waking children from sleep
• Bilateral pain (in both legs rather than just one)
• No visible signs of injury, swelling, redness, or inflammation
• Normal movement and activity levels during the day

These pains often come and go, with symptom-free periods in between. Some children might experience them a few times a year, while others feel them several times a week.

What Causes Growing Pains?

Although there’s no single proven cause, research and clinical experience suggest that growing pains are usually multifactorial. Some of the most likely contributing factors include:

1. Muscle Fatigue and Overuse – Children are naturally active — running, climbing, and jumping throughout the day. Their muscles can become tired, especially if they’re involved in lots of sports or physical play. The discomfort often surfaces at night once they’re still and their body is recovering.
2. Rapid Growth and Musculoskeletal Adaptation – Children’s bones, muscles, and connective tissues don’t always grow at the same rate. This can create periods of increased tension or tightness in the muscles, particularly in the legs.
3. Postural and Biomechanical Factors – Some children may have subtle postural imbalances or movement patterns that place uneven stress on muscles and joints. Over time, this can contribute to end-of-day discomfort. You can learn more about how these biomechanical differences affect children’s movement in our article on children’s gait and alignment issues.
4. Sensory Sensitivity – Some experts believe that growing pains are partly due to a heightened pain response — where the body’s perception of normal strain is amplified during certain stages of development.

Myths and Misconceptions About Growing Pains

There’s a lot of misinformation about growing pains. Here are some common myths we regularly hear — and the facts behind them:

• Myth: Growing pains happen because bones grow too quickly. Fact: The pain is usually muscular, not skeletal. Rapid growth may play a role, but it’s not the direct cause.
• Myth: They’re just a normal part of childhood and nothing can help. Fact: While they are often harmless, there are many ways to ease discomfort and support musculoskeletal health.
• Myth: All night-time leg pain is growing pains. Fact: Most cases are benign, but some may signal an underlying condition — especially if pain is severe, persistent, or accompanied by other symptoms.

When to Seek Professional Advice

While growing pains are usually nothing to worry about, there are times when it’s worth seeking a professional opinion. Book an assessment with an osteopath or GP if your child:

• Experiences severe or persistent pain that disrupts sleep regularly
• Complains of pain in only one leg or in a specific joint
• Shows swelling, redness, or warmth around the painful area
• Has pain that’s worse during the day or after rest
• Develops limping, weakness, or difficulty walking
• Shows other signs such as fever, fatigue, or weight loss

These “red flag” symptoms don’t automatically mean something serious is wrong, but they do warrant further investigation to rule out other causes. Just as early assessment can make a difference with conditions like knock knees or flat feet, the same is true for persistent growing pains.

How Osteopathy Can Help With Growing Pains

Osteopathy offers a gentle, holistic approach to supporting children’s musculoskeletal health. At One Health Osteopathy Clinic, we focus on identifying the underlying factors contributing to discomfort and supporting the body as it adapts and grows. Treatment may include:

1. Comprehensive Assessment – We take a full case history and conduct a thorough examination of your child’s posture, joint mobility, muscle balance, and movement patterns. This helps us distinguish typical growing pains from other causes of leg discomfort.
2. Gentle Manual Therapy – Using safe, age-appropriate techniques, we help release muscular tension, improve circulation, and support balanced movement. These gentle methods can significantly reduce night-time discomfort and support faster recovery after activity.
3. Postural and Gait Support – If subtle biomechanical factors are contributing to strain, we can offer tailored exercises and advice to improve alignment, muscle strength, and coordination — reducing the likelihood of recurring pain.
4. Home Strategies for Parents – We provide practical guidance on how to support your child at home, including simple stretching routines, heat or massage techniques, and advice on footwear and activity levels.
5. Collaborative Care – If necessary, we work closely with GPs or paediatric specialists to ensure your child receives the most appropriate care — particularly if their symptoms fall outside the typical pattern of growing pains.

Why Early Assessment Matters

Many children “grow out of” growing pains naturally. However, when these pains are severe, frequent, or affecting your child’s quality of life, early assessment is a sensible step. Addressing underlying tension, movement issues, or postural imbalances early can:

• Reduce the frequency and intensity of night-time pain
• Improve sleep quality and overall wellbeing
• Support better movement patterns and sports performance
• Prevent compensatory habits that may affect joints later in life

Perhaps most importantly, it gives parents peace of mind — knowing that their child’s growth and musculoskeletal health are on track. For more on supporting natural development, you might also enjoy our article on how posture evolves in childhood.

Supporting Healthy Growth at One Health Osteopathy Clinic

Childhood should be full of play, exploration, and movement — not disrupted by discomfort and sleepless nights. At One Health Osteopathy Clinic in Tunbridge Wells, Kent, our team of experienced osteopaths specialise in supporting children as they grow. We combine gentle hands-on treatment with tailored advice to help your child feel more comfortable and confident as they develop.

Book a Consultation Today

If growing pains are affecting your child’s sleep or daily life, you don’t have to wait and hope they’ll grow out of it. A thorough assessment can clarify what’s going on and offer real solutions.

Book an appointment with our friendly team at One Health Osteopathy Clinic in Tunbridge Wells and let us support your child’s healthy growth — so they can rest easy, move freely, and enjoy every stage of their development.