Is hip dysplasia painful for babies?
Written by Dr. Mutasem Aldhoon, pediatric orthopedic consultant · Medically reviewed by the Baby Hip Center pediatric orthopedic team · Last reviewed September 1, 2026
No — untreated hip dysplasia is almost never painful in babies and toddlers, which is exactly why it is so easy to miss. Pain typically appears much later, in the teens or twenties, if a dysplastic hip is never corrected. A baby in genuine pain, refusing to move a leg, needs assessment for other causes such as infection.
This is one of the most searched questions about DDH, and the answer is genuinely reassuring — with one important exception at the end.
Why it does not hurt in infancy
In a baby the joint surfaces are cartilage, the ligaments are elastic, and the weight going through the hip is minimal. A hip sitting outside the socket in that setting simply is not painful, and babies with a fully dislocated hip usually feed, sleep, kick and reach their milestones normally. Some walk close to the usual age, with a limp rather than distress.
When pain does appear
| Age | Typical experience |
|---|---|
| Infant | No pain. Signs are mechanical: creases, leg length, limited spread |
| Toddler / young child | Usually painless; a limp or waddle rather than complaint |
| Older child | Occasional aching or fatigue after activity |
| Teenager / young adult | Groin pain, aching after standing, sometimes clicking or giving way |
| Adult | Progressive pain from early cartilage wear and arthritis |
A baby in obvious pain needs to be seen the same day
Refusing to move a leg at all, crying whenever the hip is touched, fever, or a swollen, hot joint are not features of hip dysplasia. They suggest infection of the joint or bone, or an injury, and those need urgent assessment.
Is treatment painful?
A Pavlik harness is not painful. Babies may be unsettled for a few days while they adjust, and the harness restricts the movement they are used to, but it does not hurt. A spica cast after a reduction under anaesthetic involves post-operative discomfort for a few days, managed with simple pain relief, and then children generally tolerate the cast remarkably well.
The reason we treat a painless condition
Because the pain arrives decades later, and by then the cartilage damage is done. Untreated dysplasia is a leading cause of hip arthritis and hip replacement in young adults. Weeks in a harness in infancy is the trade being made.
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Read next
- Signs of hip dysplasia in newborns and babies
Uneven thigh creases, one leg that seems shorter, limited spread on one side, and the later signs at crawling and walking age.
- Diagnosed late: hip dysplasia found after 6 months
Screening does miss cases. What treatment looks like when dysplasia is found at 6, 12 or 18 months, and what the outlook is.
- How to get a second opinion on your baby's hips
What to bring, what to ask, and how to request a second opinion without damaging the relationship with your baby's own doctor.
This page is general information about developmental dysplasia of the hip, not a diagnosis of your own baby. It does not replace examination by your baby's doctor, and it is not for emergencies.