Port infusion (PORT) is a closed infusion device that is fully implanted in the body and consists of a catheter portion with a tip in the superior vena cava and an injection seat that is embedded under the skin. Symptoms of port dislodgement include swelling of the neck and limbs, varicose veins, chest tightness, chest pain and hemoptysis. Infusion ports are commonly used clinically to assist tumor patients with injections of chemotherapy drugs. When the base of the port and the catheter are detached, the injection of chemotherapy drugs can penetrate into the skin, resulting in swelling of the ipsilateral neck and varicose veins in some patients. At the same time, if the proximal end and the catheter are dislodged into the right atrium, some patients feel tightness in the chest, chest pain, etc., and if it further reaches the lungs, it can lead to pulmonary embolism causing hemoptysis and other symptoms. If there is a suspicion that the infusion port is dislodged, it is recommended to go to the hospital in time and follow the doctor’s instructions for treatment.