My child has phenylketonuria. How old can they recover?

Patient's question:

When it was already starting treatment, it is now three years old, being treated at Linyi Maternal and Child Health Hospital. Past treatment history and effectiveness: No genetic cause, what kind of help is cared about: Cares more about treatment help

Doctor's answer:

Guidance: Phenylketonuria is a genetic metabolic disease caused by reduced activity of phenylalanine hydroxylase or a deficiency of its coenzyme tetrahydrobiopterin, leading to the blockage of phenylalanine's decomposition metabolism into tyrosine. This results in elevated phenylalanine levels in the blood and urine, as well as a significant increase in phenylpyruvate, phenylacetic acid, and phenyllactic acid in the urine. It is still important to follow medical advice and actively treat the condition.
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