Signs & Symptoms

‘The causes aren’t fully known, it is developmental and not always present at birth’

Infant hip dysplasia, also known as developmental dysplasia of the hip (DDH), or “clicky hips” can be difficult to detect. Early diagnosis yields the most favourable outcome. It is referred to as a silent condition, as there may be no obvious signs or symptoms. The following infographic lists some potential indicators of infant hip dysplasia. Please note the presence of these, does not mean your child has hip dysplasia. Further evaluation with your GP or a child/maternal health nurse is recommended.


What is hip dysplasia?

The hip joint is made up of a ball and socket; the femoral head of the thigh bone (femur) is the ball and the acetabulum of the pelvis is the socket. Loose ligaments around the joint can allow for misalignment of varying degrees to occur. The hip joint is classified as displaced when the ball and socket do not fit together in their ‘normal’ position. Sometimes this is due to abnormal development and/or lack of growth.

Other names for hip dysplasia – 

  • Developmental dysplasia of the hip (DDH)
  • Infant hip dysplasia
  • Clicky hips
  • Hip dislocation
  • Developmental hip dislocation
  • Acetabular dysplasia
  • Congenital hip dysplasia

Further information:

Safe swaddling guidelines for healthy hip development

Hip dysplasia overview

Hip dysplasia diagnosis

Hip dysplasia treatment

Hip dysplasia in teenagers & adults

Page Reviewed:  22 January 2024. Information sources available here.


This information is intended to support, not replace, discussion with your doctor or healthcare professionals. Every effort is made to ensure this information is up to date, accurate and easy to understand. Healthy Hips Australia accepts no responsibility for any inaccuracies, information perceived as misleading. This can be reproduce with acknowledgement to Healthy Hips Australia. Handouts are available to download free of charge at