Esophageal stents usually do not have any problems for about 2 years. Whether the esophageal stent implantation is good or not or whether the esophageal stent can last longer depends mainly on the degree of tumor progression. If the tumor progresses faster and easily obstructs the entrance of the esophageal stent, this may lead to the stent itself being narrowed again, and usually requires another esophageal stent implantation, that is, double stent implantation, which also indicates that the tumor progresses relatively fast. As the tumor itself is infiltrated by malignant lesions, it may lead to multiple metastases and cause poor nutrition in the body, resulting in malnutrition and cachexia, causing life-threatening conditions, so the duration of esophageal stent implantation is also related to the disease itself.