Can I go to Tuanjiehu for a health certificate from Monday to Friday?

Yes, I'm not from your place, but I work in the CDC and I can give you some information. The health certificate is issued at the CDC, and there is a holiday on weekends. You can only go from Monday to Friday, preferably in the morning, because some places only do it in the morning and not in the afternoon. Don't eat in the morning (you need to fast), bring photos and related expenses (some places have electronic cameras, you don't need photos, and the cost of getting a health certificate varies from place to place). There is no problem after the examination, and you can get a health certificate in 3-7 days.