A compassionate, practical guide to osteogenesis imperfecta — written by someone who lived it.
I have OI.
I grew up knowing my bones were different. I know what it's like to watch a parent search endlessly for the right products, the right information, the right community — and come up empty. When I was younger, there was no single place online that had everything a family navigating OI needed, all in one place, with us in mind.
That's why I built DiamondBones. And that's why I wrote this guide.
If you've just received your child's diagnosis, or you're still trying to understand what OI really means for your family's daily life — this is for you. No clinical jargon. No overwhelm. Just what you actually need to know, from someone who's been there.
What Is Osteogenesis Imperfecta?
Osteogenesis imperfecta — literally "imperfectly formed bone" — is a genetic disorder that affects the body's ability to produce collagen, the protein that gives bones their strength and flexibility.
Without enough healthy collagen, bones become fragile and break more easily than normal — sometimes from minor falls, and in severe cases, from everyday movement or even sneezing.
OI is sometimes called "brittle bone disease," though many in the OI community prefer to avoid this term, as it doesn't capture the full picture of who their children are.
How Common Is OI?
OI affects approximately 1 in 10,000–20,000 people worldwide. In Canada, that means thousands of families are navigating this condition right now. It occurs across all ethnicities and affects males and females equally.
Types of OI
OI is classified into types (Type I through Type V and beyond), ranging from mild to severe:
- Type I (most common) — mild form, some fractures but near-normal life expectancy and height
- Type II — most severe, often life-limiting
- Type III — severe, progressive bone deformity, shorter stature
- Type IV — moderate severity, variable symptoms
- Type V — similar to Type IV but with distinct bone characteristics
Most children with OI have Type I or Type IV, meaning they can live full, active lives with the right support.
What Causes OI?
In most cases, OI is caused by a mutation in the COL1A1 or COL1A2 genes, which are responsible for producing Type I collagen. This mutation is usually inherited from a parent, but can also occur spontaneously (de novo) with no family history.
Signs and Symptoms to Know
Beyond fractures, OI can present with:
- Blue or grey tint to the whites of the eyes (sclera) — very common in Type I
- Short stature in more severe types
- Hearing loss in some individuals, typically in adulthood
- Loose joints and low muscle tone
- Dental issues (dentinogenesis imperfecta) — teeth that are discoloured or break easily
- Spinal curvature (scoliosis or kyphosis) in some types
How Is OI Managed?
There is currently no cure for OI, but there are effective ways to manage it and support your child's bone health:
Medical treatments:
- Bisphosphonate therapy (e.g. pamidronate) — commonly used to increase bone density and reduce fracture rates in children
- Physiotherapy — builds muscle strength to support fragile bones
- Occupational therapy — helps children adapt daily activities safely
- Surgery — in some cases, metal rods are inserted into bones to prevent fractures
At-home support:
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Nutrition — adequate calcium, vitamin D, and vitamin K2 are critical for supporting bone density. TheÂ
DiamondBones Kids Bone Health Gummies  are formulated specifically for children ages 4+ managing bone health conditions like OI, providing D3 and calcium in a format kids actually enjoy - Safe movement — low-impact activities like swimming are excellent for building strength without fracture risk
- Protective gear — padding, helmets, and adapted equipment for active play
- Emotional support — children with OI often face social challenges; connecting with OI communities can help
Talking to Your Child About OI
Children understand more than we think. Age-appropriate honesty builds trust and helps them develop a healthy relationship with their body. Key messages to reinforce:
- Their bones are different, not broken
- They can still do most things — sometimes just differently
- Their strength comes from more than their bones
Many adults with OI lead full, independent, adventurous lives. Your child can too.
Where to Find Support in Canada
- Osteogenesis Imperfecta Canada — oicanada.ca — the national organization for OI families
- BC Children's Hospital, SickKids, CHEO — major children's hospitals with OI specialist teams
- Canadian OI parent communities — Facebook groups and online forums connect families across the country
The Bottom Line
You're not alone in this. And neither is your child.
DiamondBones was built for families like yours — because finding the right bone health support shouldn't be another thing to struggle through. OurÂ
Strong bones start with the right support. You've already taken the first step by being here.