The basic requirement for a health certificate photo is one inch. Some cities have adopted IC cards, and photos are taken or scanned on the spot. If you need a photo, although it is two inches, you can cut it into one inch and the head display will be complete. Pay attention to: 1 when applying for a health certificate, and bring two one-inch photos, although most of them have used electronic cameras; 2. When handling the health certificate, go to the local disease prevention and control center; Don't eat last night and that morning, because you need to draw blood on an empty stomach. 4. Most photos processed locally are photos with red background; 5. Pay attention to bring enough expenses when handling the health certificate; 6. A health certificate is a health examination certificate, which proves that you had a health examination in a certain year and month.