What you may notice
Symptoms can overlap with other conditions and vary between people.
- Often no signs at birth
- Developmental problems without management
- Seizures in severe untreated disease
- Behavioral difficulties in some cases
Understanding care
Clinical care may include newborn-screening follow-up, metabolic monitoring and prescribed nutritional management. A qualified clinician decides which investigations and options fit the individual situation.
When to seek help
Discuss poor growth or feeding concerns promptly with the specialist team. Inability to maintain intake, repeated vomiting or unusual drowsiness needs urgent assessment, especially in infants.
For severe breathing difficulty, collapse, suspected stroke, or another emergency, call local emergency services immediately. In India, call 112.
Read the medical sources
These sources support the educational article and offer more detail.
Prepared from the linked sources. This summary has not had an independent clinician review. A qualified clinician can assess symptoms and explain which information applies to you.
