The fundamental difference between benign and malignant tumors

Benign tumors grow slowly, and only when the tumor grows to a certain size will it cause local compression symptoms, will not cause systemic symptoms. However, malignant tumors can not only cause symptoms in the primary, but also cause corresponding symptoms in the metastatic lesions. At the same time, patients with malignant tumors often show systemic symptoms of malnutrition and fever due to competition between tumor and body for nutrient intake.