Are all tumors malignant?

Tumors are not necessarily malignant and are classified into two categories: benign and malignant. Benign tumors grow slowly, do not metastasize, and pose relatively little harm to the body. Malignant tumors grow rapidly, tend to spread, and can seriously threaten health. If you notice unusual lumps or discomfort in your body, seek timely evaluation at an oncology department or relevant specialty clinic.

Benign tumors often have a complete capsule, clear boundaries from surrounding tissues, and do not invade nearby organs or spread to distant sites. Common examples include breast fibroadenomas and uterine fibroids. In most cases, they can be cured through surgical removal, with low postoperative recurrence rates and minimal impact on bodily functions.

Malignant tumors lack a distinct capsule, easily invade surrounding tissues, and can spread to other organs via blood or lymphatic pathways, disrupting normal tissue function—examples include lung cancer and gastric cancer. Without prompt treatment, the condition progressively worsens, affecting multiple body systems and potentially becoming life-threatening. Comprehensive treatments such as surgery, radiotherapy, and chemotherapy are typically required.

In daily life, maintain regular作息 (sleep-wake cycles), avoid chronic sleep deprivation and excessive fatigue, reduce tobacco and alcohol consumption, eat more fresh fruits and vegetables, undergo regular physical examinations, pay attention to any abnormal bodily changes, maintain a positive mindset, and strengthen the body's immune defenses to lower the risk of developing tumors.