It is necessary not to eat before physical examination, but you can't deliberately not drink water. You can drink a small glass of water (about 200 ml) after getting up on the day of physical examination to ensure the necessary water for the human body. However, you still have some time to go to the physical examination center, and the human body can completely absorb this water, which will not affect the physical examination results.

However, you can't drink water after you arrive at the medical examination institution, because there are blood routine and urine routine in the medical examination items. Drinking water will have some influence on these examination results. You can drink water and eat after completing all fasting examination items. Everyone can't help drinking water before the physical examination. We must grasp the time and quantity to have accurate physical examination results.