Why do tumors metastasize?

Jun 27, 2024 Source: Cainiu Health
Disease description:

My aunt was diagnosed with cervical cancer, which was controlled after chemotherapy. However, during a follow-up examination six months later, it was found that the cancer had metastasized. Why does tumor metastasis occur?

Doctor's answer (1)
Dr. Qi Zhirong
The occurrence of tumor metastasis is a complex process primarily influenced by multiple factors. 1. Tumors with high malignancy possess strong invasive and spreading capabilities, enabling them to destroy surrounding normal tissues, invade blood vessels or lymphatic vessels, and spread to other areas through these channels. 2. Untimely treatment is also an important factor leading to tumor metastasis, as tumors that are not promptly controlled may continue growing and invading surrounding tissues, thereby increasing the risk of metastasis. 3. Poor physical condition, genetic factors, and the tumor microenvironment can also affect tumor metastasis. Specifically, genetic mutations in tumor cells, unhealthy lifestyle habits such as poor sleep patterns, diet, and living environment may all potentially promote tumor metastasis. For cancer patients, early detection, timely treatment, and improvement of lifestyle habits are key to preventing tumor metastasis.