Back problems caused by schoolbags in childhood
Author Dr. Ákos Morvai | 2026.01.27.
What every parent should know from a paediatric orthopaedic perspective
Schoolbags are an everyday part of children's lives, so it's not surprising that many parents are concerned that a bag that is too heavy or worn inappropriately back pain, postural problems or even scoliosis from childhood can also cause. The topic is also often raised in paediatric orthopaedic surgeries, especially when a child complains of back pain or when a discrepancy is detected during a school check-up.
In recent years, a number of large-scale international studies have investigated the relationship between schoolbag weight, back pain and scoliosis in children. The following summary presents these scientific findings in an accessible, practical way, from a paediatric orthopaedic perspective.
How common is it for schoolbags to be too heavy?
Studies show that a significant proportion of children in lower primary school are underweight too heavy wears a school bag. Several studies have shown that in many cases the weight of the bag exceeds ten to fifteen percent of the child's body weight, especially for smaller children.
This means that excessive baggage weight is not an isolated problem, but a common, systemic phenomenon. In paediatric orthopaedics, this is important because developing musculoskeletal system may be more sensitive sustained, disproportionate loading, even if this does not in itself cause permanent structural damage.
Dr. Ákos Morvai
Paediatric and neuro-orthopaedic surgeon
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Can a schoolbag cause scoliosis in children?
Based on current scientific evidence, there is no evidence that the weight, type or way of wearing a schoolbag directly causes childhood scoliosis, or idiopathic scoliosis. A scoliosis in childhood is a complex process, mainly due to genetic and growth factors.
From a paediatric orthopaedic point of view, it is important to stress that scoliosis does not „develop from a bag”. At the same time with pre-existing scoliosis children may be more sensitive to asymmetric loading. For them, it is particularly important to use a symmetrical backpack worn over both shoulders and to avoid excessive loads.
Is the weight of the schoolbag linked to back pain?
Based on large systematic reviews involving thousands of children, there is no clear evidence that a schoolbag alone, which accounts for more than ten percent of body weight, causes more frequent back pain. At the same time, the back, neck and shoulder pain is a real complaint, which should be taken seriously in paediatric orthopaedics.
Clinical experience and research suggests that complaints often result from a combination of factors. These may include prolonged carrying, little movement, weak trunk muscles, a lot of sitting and screen use, and inappropriate bag-carrying habits. Together these can increase the risk of musculoskeletal overload.
What can parents do to prevent this?
According to paediatric orthopaedic recommendations, the ideal weight of a schoolbag should be, as far as possible not exceed about ten percent of the child's body weight. For short periods of time, in exceptional situations, a load of twelve to fifteen percent is still acceptable, but a higher weight is not recommended on a permanent basis.
The correct way of wearing is also a priority. The bag should always be worn on two shoulders, with properly padded shoulder straps, and it is important that the bag does not hang too low, as this can increase forward lean and strain on the spine. Packing habits also make a difference: it's a good idea to carry only the equipment you need for the day and to check the contents of your bag regularly.
When is a paediatric orthopaedic examination warranted?
A paediatric orthopaedic examination is recommended if child complains regularly pain in the back, neck or shoulders, if the bag is protruding noticeably under your weight, or if you have persistent postural asymmetry for example, one shoulder is permanently lower.
It is also advisable to consult a specialist if the child tires quickly, avoids being carried or if a spinal abnormality is detected during a school check-up. A paediatric orthopaedics role is not only to exclude or confirm the presence of scoliosis in children, but also to make a complex assessment of the complaints.
The aim is not to achieve perfect posture, but to ensure a proportionate, symmetrical load, encourage regular exercise and take the child's complaints seriously. With the right attention and, if necessary, a paediatric orthopaedic examination, problems can in most cases be detected and treated in time.
This briefing is based on the findings of several international studies and systematic reviews. Literature: 1. Górna S, Pazdro-Zastawny K, Basiak-Rasała A, Krajewska J, Kolator M, Łesiuk-Krajewska A, Kozłowska-Panek K, Cichy I, Rokita A, Zatoński T. Assessment of the elementary school students' schoolbag weight in the urban environment in Poland: a cross-sectional study carried out as a part of the 'Lightweight Schoolbag' and 'Let's Get the Kids Moving' projects. Work. 2022;73(1):121-129. doi: 10.3233/WOR-210788. PMID: 35912770. 2. Ghanem I, Rizkallah M. Adolescent idiopathic scoliosis for the primary care physician: frequently asked questions. Curr Opin Pediatr. 2019 Feb;31(1):48-53. doi: 10.1097/MOP.0000000000000705. PMID: 30461512. 3. Calvo-Muñoz I, Kovacs FM, Roqué M, Seco-Calvo J. The association between the weight of schoolbags and low back pain among schoolchildren: a systematic review, meta-analysis and individual patient data meta-analysis. Eur J Pain. 2020 Jan;24(1):91-109. doi: 10.1002/ejp.1471Epub 2019 Sep 9. PMID: 31421006. 4. Dockrell S, Simms C, Blake C. Schoolbag carriage