Search for a rare disease

* (*) mandatory field

Other search option(s)

Suggest an update

(*) Required fields.


Only comments seeking to improve the quality and accuracy of information on the Orphanet website are accepted. For all other comments, please send your remarks via contact us. Only comments written in English can be processed.

Captcha image

Transient tyrosinemia of the newborn

Disease definition

Transient tyrosinemia of the newborn is a benign disorder of tyrosine metabolism detected upon newborn screening and often observed in premature infants. It shows no clinical symptoms. It is characterized by tyrosinemia, moderate hyperphenylalaninemia, and tyrosiluria that usually resolve after 2 months of age.


Classification level: Disorder
  • Synonym(s):
    • Transient tyrosinemia of the neonate
  • Prevalence: -
  • Inheritance: -
  • Age of onset: Neonatal
  • ICD-10: P74.5
  • OMIM: -
  • UMLS: -
  • MeSH: -
  • GARD: 5388
  • MedDRA: -

Detailed information


Additional information

Further information on this disease

Specialised Social Services

The documents contained in this web site are presented for information purposes only. The material is in no way intended to replace professional medical care by a qualified specialist and should not be used as a basis for diagnosis or treatment.