The medical checkup usually requires an additional fee, because many abnormal indicators will be found during the checkup, such as fasting blood glucose to 6.5mmol/L, which is significantly higher than the normal blood glucose level of 3.9-6.1mmol/L, and then the doctor will recommend a review. During the review, you can choose a more appropriate time to take blood test on an empty stomach to see if there is any abnormal blood sugar, or even if there is diabetes. In addition, if the urine is positive for red blood cells, or if the urine is positive for protein, the doctor may also recommend a repeat urine test. Some cases do not require additional payment, such as blood hemolysis, the laboratory will notify to come back to take blood tests, then often do not need to pay additional fees.