Back-to-school often means fresh notebooks, newly sharpened pencils, and sometimes very full backpacks. While familiar, this annual ritual can come with physical discomfort, especially for young people whose backs are still developing. An excessively heavy backpack may be associated with a higher risk of musculoskeletal pain, particularly affecting the back, shoulders, and neck.
At Radiméd, we recognize the importance of a preventive approach to health. As the return to class approaches, it can be helpful to raise awareness among parents and students about the possible impacts of an overloaded bag and to share simple strategies to help reduce these risks.

Possible effects of an overly heavy backpack for back-to-school

The excitement of the first days of school can quickly give way to discomfort if backpack weight is overlooked. Because their musculoskeletal system is still growing, young people may be more sensitive to the effects of excessive loads. Carrying a heavy pack over a long period could lead to various issues that go beyond temporary discomfort.

Impact on posture and the spine

A disproportionately heavy bag often leads students to compensate by changing their posture: rounded back, shoulders rolled forward, head tilted. Maintained over time, this posture may increase pressure on certain regions of the spine, especially the lower back. This could translate into pain or increased muscle tension.

The back and neck muscles, engaged to support the weight, can become stiff and less flexible, which may also be accompanied by headaches or muscle fatigue.

Shoulder and neck pain: a direct consequence

Poorly adjusted or overly tight straps can place uncomfortable pressure on the shoulders and increase tension in the neck area. The trapezius muscles, heavily engaged, may develop stiffness or a sense of heaviness. In some young people, this can show up as neck pain or pain that radiates toward the head, causing tension headaches.

Risk of longer-term injuries and imbalances

Prolonged use of a too-heavy bag could, for some children and teens, contribute to postural imbalances or ongoing discomfort. Some research also suggests a possible link with musculoskeletal issues such as chronic low back pain or shoulder tendinitis. These effects vary between individuals and do not occur in everyone.

Assessment and prevention: making the backpack lighter

The good news is that most problems related to heavy backpacks can be avoided or reduced with simple preventive measures. The key lies in a mindful, organized approach to lowering the load students carry and optimizing how the backpack is worn.

Recommended backpack weight

A general rule often recommended by health professionals is that a backpack should not exceed 10% of the child’s body weight. For example, a child weighing 40 kg should not carry a bag heavier than 4 kg. However, this percentage is an average: tolerance also depends on the child’s physical condition and comfort. Open communication with your child about how they feel is also essential.

Declutter the backpack: sort and organize

Volume and contents are the main determinants of a backpack’s weight. A few simple steps can help lighten it:

  • Sort regularly: Encourage your child to empty and sort their backpack daily, removing unnecessary notebooks, old assignments, snack wrappers, or extra items. A weekly “declutter” routine can make a big difference.
  • Use lightweight binders: Instead of carrying notebooks for every subject, opt for binders with removable sections or folders for each class that day.
  • Scan or photocopy: For students working on research or heavy reading, consider scanning or photocopying only the pages needed for a given day rather than carrying the entire book.
  • Use a school locker: If lockers are available, encourage your child to leave books and materials they don’t need for evening homework. Stopping at the locker between periods can help a lot.
  • Go digital where possible: More and more schools use digital platforms. Encourage your child to use digital versions of textbooks and notes whenever possible.

Choosing the right backpack: an investment in health

The type of backpack plays a key role in weight distribution and comfort. Investing in a well-designed bag is a smart health choice for your child.

  • Padded, adjustable straps: Choose wide, well-padded, easily adjustable straps. They should comfortably support the load without digging into the shoulders. The fit should allow the bag to rest comfortably on the child’s back, neither too low nor too high.
  • Chest and waist straps: Backpacks with chest and waist straps are highly recommended. The chest strap helps stabilize the pack and distribute the load, while the waist strap shifts part of the weight to the hips, reducing strain on the shoulders and back.
  • Multiple compartments: A bag with several compartments helps organize contents and distribute weight evenly. Place heavier items (books, thick notebooks) close to the back in the main compartment. Lighter or smaller items can go in outer pockets or secondary compartments.
  • Lightweight, durable materials: Choose a backpack made from sturdy yet lightweight materials to avoid adding unnecessary weight.
  • Ventilated back panel: Some backpacks feature a ventilated back panel to improve airflow, which is especially appreciated in warm weather.

How to wear a backpack properly

Even the best backpack can cause problems if it’s not worn correctly. Teach kids these best practices:

  • Always use both straps: Wearing the bag on one shoulder throws the body off balance, increases tension on one side of the neck and back, and may lead to recurring pain.
  • Adjust the straps: The backpack should rest comfortably mid-back—neither too low on the hips nor too high near the shoulders. Straps should be snug enough to keep the bag stable without cutting off circulation.
  • Use the extra straps: Take time to adjust the chest and waist straps. They’re there to help distribute weight effectively.

Recognizing pain and when to seek advice

It may be helpful for parents and children to watch for signs of overload or poor posture related to backpack use. Recognizing certain signals can prompt timely action and help reduce discomfort.

Symptoms to watch for

Keep an eye out for the following signs in your child:

  • Persistent pain: in the neck, shoulders, upper or lower back, that does not improve after a few hours without the backpack.
  • Postural changes: a tendency to lean forward or to one side to compensate for the weight The child constantly leans forward or to one side to offset the weight of the bag.
  • Redness or irritation: strap marks suggesting a bag that’s too heavy or poorly adjusted.
  • Difficulty putting on or taking off the bag: if the child struggles to lift it or put it on.
  • Unusual fatigue: Increased tiredness, especially in the back and shoulders, may indicate muscle overwork.
  • Behavior changes: irritability, less activity, or frequent complaints of headaches.

When to consider a medical consultation

In some situations, it may be appropriate to consult a healthcare professional, particularly when discomfort related to backpack use seems more pronounced or persistent. A medical evaluation may sometimes be suggested if:

  • Severe or sharp pain: pain is intense and limits usual movement.
  • Chronic pain: discomfort persists for several weeks despite adjustments.
  • Radiating pain: pain extends into the arms or legs.
  • Visible postural changes: asymmetry of the shoulders or hips, or a visible spinal deformity.
  • Numbness or weakness: tingling, unusual sensations, or weakness in the arms or legs.

Depending on the physician’s judgment, imaging tests (such as an X-ray) may be prescribed to better understand the source of symptoms and guide follow-up recommendations.

Conclusion

Backpack weight is a factor that may be helpful to monitor from the start of the school year. Simple measures such as lightening the load, adjusting the backpack properly, and staying alert to signs of discomfort may support young people’s well-being. At Radiméd, we draw on our expertise in medical imaging to support families when more in-depth evaluations are needed.

To book an exam at Radimed

If you have a medical requisition for an X-ray exam, you can go directly to one of our Radimed centers. Some imaging exams, such as MRI, may require booking an appointment in advance. We invite you to consult the Radimed Services section to check whether an appointment is required for the prescribed exam.

Note: The information presented in this article is provided for informational purposes only and does not replace medical consultation. For any concerns about your child’s health, it is recommended to consult a healthcare professional.