The precautions to be taken after the removal of indwelling needles include pressure, prevention of infection, and observation of changes at the site of the eye of the needle. 1. Pressure: After removing the indwelling needle, it is recommended to press for about 5 minutes to avoid bleeding from the needle opening. 2. Prevention of infection: After removing the needle, it is necessary to disinfect the eye site with iodophor to prevent infection by bacteria and other pathogenic microorganisms. 3. Observe the changes of the needle eye site: After removing the indwelling needle, pay attention to observe the changes of the needle eye site, whether there is redness, swelling, tightness, pain and other phenomena. Once abnormalities occur, go to the hospital as soon as possible. There may be other precautions after the removal of indwelling needles, it is recommended to consult a professional nurse or doctor, discomfort, it is recommended to consult a doctor in a timely manner, under the guidance of a professional doctor to standardize the treatment, so as not to delay the condition.