The health certificate is valid for one year, and it will be invalid after one year. The cost of health certificate includes two aspects, one is the medical examination fee, the other is the theoretical knowledge training content, and the business card printing fee 10 yuan. The national health certificate price is basically unified.
You should go to your local centers for disease control and prevention to get a health certificate instead of going to the hospital. The cost is about 100 yuan. The examination items are quite simple. As long as you have a blood test or something, it's quite basic, and you can get a health certificate in a week or two. If there is no special requirement for carry-on documents, just bring your ID card. If you want to be more sure, so as not to run the wrong way, you can call to consult your illness.
Good luck! ! !