Pregnant women with hyperphenylalaninemia may show similar symptoms of the disorder (high levels of phenylalanine in blood), but these indicators will usually disappear at the end of gestation.
As mulleres preñadas que padecen hiperfenilalaninemia poden presentar síntomas moi parecidos aos da fenilcetonuria (altos niveis de fenilalanina en sangue) pero estes síntomas xeralmente desaparecen ao final da xestación.