Esophageal stents usually have side effects such as bleeding, pain, and stent detachment. 1. Bleeding: Usually due to the fragile esophageal lesion, especially in the case of esophageal malignant tumor, esophageal stent may lead to esophageal dilatation, which may trigger bleeding. 2. Pain: Usually after stent implantation, patients may have a foreign body sensation or even chest pain. Usually the higher the position of placement, the more obvious the symptoms of pain. 3. Dislocation of stent: It may be caused by the position is not easy to be fixed, too cold diet and so on. If the patients have the above mentioned situations, they should actively seek medical treatment and standardize the treatment under the guidance of professional doctors, so as to avoid serious adverse consequences.