How is Clubfoot Diagnosed?
Clubfoot can be diagnosed either during pregnancy through ultrasound scanning or at birth through physical examination. Understanding the diagnostic process helps parents prepare for what comes next.
Prenatal Diagnosis
Clubfoot is sometimes detected during the routine 20-week anomaly scan:
- The sonographer looks at the position of the baby's feet
- A foot turned inward may indicate clubfoot
- Additional scans may be offered to confirm
- Prenatal diagnosis is not always 100% accurate
Benefits of Early Detection
- Time to research and understand the condition
- Opportunity to meet the treatment team before birth
- Emotional preparation for parents
- Treatment can begin quickly after birth
Diagnosis at Birth
Most commonly, clubfoot is diagnosed when:
- The newborn examination reveals an affected foot
- The foot is turned inward and downward
- The affected foot cannot be moved to a normal position
- The calf muscle may appear smaller
Physical Signs of Clubfoot
- Equinus: Foot points downward
- Varus: Heel turns inward
- Adductus: Front of foot curves inward
- Cavus: High arch in the foot
Types of Clubfoot
Idiopathic Clubfoot
The most common type (about 80% of cases):
- Occurs in otherwise healthy babies
- No known cause
- Responds very well to Ponseti treatment
- Excellent long-term outcomes
Syndromic Clubfoot
Associated with other conditions:
- May occur with arthrogryposis, spina bifida, or other syndromes
- Treatment approach may be modified
- Usually requires longer treatment
- Outcomes vary based on underlying condition
Understanding Severity
Doctors assess clubfoot severity using the Pirani score: For more details, see our recognising clubfoot symptoms.
- Measures six aspects of the foot
- Score ranges from 0 (corrected) to 6 (severe)
- Higher scores may mean more casts needed
- Score improves as treatment progresses
Unilateral vs Bilateral Clubfoot
- Unilateral: One foot affected (about 50% of cases)
- Bilateral: Both feet affected (about 50% of cases)
Treatment is the same for both types; bilateral cases simply require treating both feet simultaneously.
What Causes Clubfoot?
In most cases, the exact cause is unknown. Contributing factors may include:
- Genetic predisposition (slightly higher risk if a family member had it)
- Position in the womb
- Environmental factors during development
Important: Clubfoot is never the parents' fault. Nothing you did or didn't do during pregnancy caused it. You might also find our prenatal diagnosis helpful.
Read more in our guide: Pirani Score Explained: Understanding Clubfoot Severity.
See our full guide: How Do You Know If Your Baby Has Clubfoot? UK Signs.
Learn more in our guide: When Should Positional Talipes Resolve? UK Milestones.
Next Steps After Diagnosis
- Referral to a specialist Ponseti clinic
- First appointment usually within 1-2 weeks of birth
- Treatment begins with the first cast
- Regular weekly appointments during casting phase
Questions to Ask Your Doctor
- What type of clubfoot does my child have?
- What is the severity score?
- How many casts are typically needed?
- When will treatment begin?
- What support is available for families?
Understanding the diagnosis is the first step toward successful treatment. With modern care, the vast majority of children with clubfoot grow up to have fully functional, pain-free feet.