diagnose
US /ˌdaɪ.əɡˈnoʊs/
UK /ˌdaɪ.əɡˈnoʊs/

1.
diagnosticar
identify the nature of (an illness or other problem) by examination of the symptoms
:
•
The doctor was able to diagnose her illness quickly.
O médico conseguiu diagnosticar a doença dela rapidamente.
•
It's important to diagnose the problem early to prevent further damage.
É importante diagnosticar o problema cedo para prevenir danos maiores.