Why are most tumors discovered at an advanced stage? Hello everyone, I am Director Li. Some conditions show no symptoms in their early stages. If we rely solely on symptoms for diagnosis, could it lead to delayed treatment? Take tumors, for example. Why are most tumors discovered at an advanced stage? It’s because they often present no symptoms in the early phases. For instance, lung cancer may start as a small nodule in the lungs. Even if it grows to five or six centimeters, there might be no noticeable sensation. However, if it grows near the bronchus and causes obstruction, symptoms like difficulty breathing may occur. This is why we now emphasize the importance of regular check-ups—to address health issues earlier, rather than waiting for symptoms to appear. For example, ovarian cancer, a type of gynecological cancer, is mostly detected at an advanced stage. This is because the abdomen provides ample space for growth without interfering with other organs, making early detection challenging. That’s why regular check-ups are crucial. As I often say, the primary goals of check-ups are twofold: first, to screen for cardiovascular and cerebrovascular diseases, as they currently have the highest mortality rates, and second, to detect early-stage tumors.