Insulin injection method: Take the insulin out of the refrigerator half an hour before injection, and wait until the temperature of the solution is close to room temperature before injecting. Operators must wash their hands before injecting and prepare insulin bottles, syringes, alcohol swabs and other supplies needed for injection. When injecting short-acting insulin, you should first disinfect the injection bottle cap with an alcohol cotton ball, then use a syringe to suck the same amount of air as the required insulin injection into the insulin bottle, then turn the insulin bottle upside down with your left hand, and hold the syringe with your right hand to aspirate. insulin. If you inject medium-acting or long-acting insulin, you should place the insulin injection bottle flat in the palm of your hand, hold the bottle with both hands, roll it back and forth about ten times to fully mix the liquid in the bottle, and then follow the method for injecting short-acting insulin. After selecting the injection site, disinfect the skin with an alcohol cotton ball. After the alcohol dries, use one hand to pinch up the skin at the injection site about 1 inch, and with the other hand, insert half of the needle at a 45-degree angle for injection. Inject the liquid into the area, and then relax the lifted skin. The needle should stay under the skin for about 10 seconds before pulling it out. Do not rub the injection site. Do not inject too many injections into the same site and at the same point. Use each site alternately to avoid subcutaneous lipodystrophy. Whether it is a special syringe or a pen needle, it should be single-use. Repeated use will blunt the needle, create gaps and barbs that are not easily noticeable to the naked eye, increase pain, and even risk needle breakage and skin infection. Always press the injection site with your fingers to see if there is any hardness or pain. In severe cases, you should consult a professional medical staff and avoid these sites when injecting. If the meal time is occasionally advanced, choose an area five centimeters outside the umbilicus on the abdomen; if it is delayed, choose the buttock injection.