The choice between intravenous fluids or oral medication is a real problem for patients. I once incurred patient dissatisfaction because I did not agree to prescribe infusions to my patients, and I think many physicians may have encountered similar situations. Perhaps some patients or their families believe that only infusion therapy is important to the patient for a good outcome, is this really the case? Enjoy the scenery, we praise the masterpiece of nature, less people praise the man-made landscape; taste the food, we prefer natural cuisine. Because natural beauty is the great beauty, nature is originally harmonious, everything has its own way, the natural way is the way. God gave us a set of perfect digestive organs, which we use to replenish energy, water, electrolytes, vitamins, etc., the elements of life on which we depend, and this is the natural way. If we get sick, the digestive tract is, of course, the natural way to administer medicine. It could be argued that intravenous fluids are the unnatural route and can pose some problems. For example, the tiny impurities and pyrogens that are invisible to the naked eye inside the fluid may cause harm to the human body when fed directly into the bloodstream, and if the input fluid is contaminated, the problem is even bigger; the amount of input fluid and the speed of input are manually regulated, and some patients cannot tolerate it when it is not regulated properly. Most of the cases need to add specific drugs in the liquid, the liquid is just a carrier to carry drugs, drug selection is not reasonable even if the daily infusion can not cure the disease, some drugs have better efficacy but may have greater local irritation, can cause phlebitis at the site of infusion. If so, why do hospitals often give patients intravenous infusion? There are some reasons: the patient’s digestive system problems, can not eat, or the absorption of drugs or the need to let the digestive system proper rest; coma, mental abnormalities or other reasons lead to patients can not cooperate with the medication; certain drugs through the digestive tract poor absorption, only through the intravenous route of drug delivery; dehydrated, hyperthermic patients need to supplement a large number of fluids; critical patients need to quickly administer drugs, quickly reach The effective blood concentration or maintain a stable blood concentration. If intravenous administration is not necessary, oral administration is of course the best. If you understand what I have said, will you still ask for intravenous fluids when your doctor recommends oral medication?