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.
El médico pudo diagnosticar su enfermedad rápidamente.
•
It's important to diagnose the problem early to prevent further damage.
Es importante diagnosticar el problema temprano para prevenir daños mayores.