1. It usually takes several days to synchronize the health certificate information issued by the health department to the online inquiry system. If the inquirer can't find his health certificate online, he can inquire again in a few days.
2. When the inquirer applies for a health certificate, if the personal information, such as name and ID number, is filled in incorrectly, the inquirer can't find his own health certificate when inquiring, so he needs to contact the health department in time to modify it.
3. The website for health certificate inquiry sometimes has system failure, so it can't be inquired normally. In this case, you need to wait patiently or inquire at other time.
In short, if you can't find your health certificate online, you can first verify whether the information you have filled in is correct, or you can contact the local health department or physical examination institution for consultation.