Cardia nodules may be caused by inflammation or benign tumors in the cardia area, which is not very serious, while malignant tumors are more serious. Nodules in the cardia may be caused by inflammation in the cardia area or benign tumors such as adenomas, smooth muscle tumors, hemangiomas, etc., and the prognosis is better after surgical resection or medication, so these cases are not serious. However, malignant tumors of the cardia need to be considered for surgical resection and, if necessary, combined with radiotherapy and chemotherapy, which are more serious. Patients with cardia nodules should go to the hospital and consult with a professional doctor to determine whether it is serious or not, taking into account their own situation.