Belly needle in the clinical is to inject drugs into the patient’s subcutaneous tissue, common injectable drugs for insulin and low-molecular heparin, etc. Its correct injection method can refer to the following: 1, first prepare the injection apparatus and drugs, to use 1ml syringe, and explain clearly to the patient the role of drugs. 2, the injection site sterilization treatment, wait until the skin is dry before injection. 3, the patient’s 4, the injection needle should be about 30-40° with the patient’s skin, not more than 45° to avoid piercing the muscle layer. 5, the piercing depth is 2/3 of the needle, if there is no phenomenon of blood return, the drug can be pushed in. 6, if the patient often subcutaneous injection, it should be noted that the injection site should be rotated and changed, after the injection is completed, you can use After the injection, you can use cotton balls to press the injection site to prevent bleeding, and also avoid contact between the injection site and water to avoid infection and health problems.