Small amounts of small air bubbles in the IV tubing entering the body will not cause an effect, but entering a large number of air bubbles for a short period of time can cause a gas embolism that can be life-threatening. Infusions are a common way of administering medication, where bottles or bags of infused drugs are delivered to the body through an intravenous drip. Generally speaking, the amount of air bubbles that enter the body during infusion is very small and will not cause harm to the human body because these bubbles will basically enter the pulmonary artery with the blood and be expelled from the lungs or dissolved and absorbed by the blood, so there is no need to worry too much. However, if the amount of gas bubbles entering the body is relatively large, it will affect the contraction of the heart to eject blood, and the gas can not be discharged will also form an embolism, and even life-threatening. So although a small amount of air entering the body will not cause any problems, it is still important to keep an eye on the medication during infusion to avoid entering large amounts of air that could cause irreversible damage to your health or life.