A lagging needle is about as harmful to the body as a daily needle insertion, and both have their own advantages and disadvantages, and there is no such thing as which one is more harmful. A lagging needle is an infusion needle that stays in the body. Its advantage is that it does not require a separate puncture for the second infusion, which reduces the pain of puncture and does not affect the patient’s daily life. The disadvantage is that improper care may result in infection. The advantage of daily insertion is that it can ensure the sterile state of the wound site and reduce the chance of infection, the disadvantage is that it needs to be punctured every day, which will increase the patient’s pain to a certain extent. The choice of lagopharyngeal needle and daily insertion of needle needs to be decided according to the characteristics of the disease, if long-term infusion is required you can choose lagopharyngeal needle, if the infusion time is relatively short, you can choose daily insertion of needle.