Tumor, as one of the well-known diseases that can lead to human death, is the normal regulation of growth caused by abnormal local cells at the gene level under the action of various carcinogenic factors, resulting in abnormal hyperplasia, which is often manifested as local tumor, so it is also called tumor.
But some people get tumors and live for a long time, while others unfortunately die soon after detection. Why is that?
Why do people have tumors, different people have different survival times?
There are several reasons for different life durations of cancer:
(1) Different tumor properties
Tumors are classified as benign and malignant. Benign tumor is generally a large number of replication and formation of fully differentiated somatic cells. It is just a simple growth without metastasis, invasion or generation of blood vessels. In general, it will be ok after surgical resection, without too much influence on the body. A malignant tumor, or cancer as we call it, is an undifferentiated cell that replicates in large numbers, so it can grow rapidly, form blood vessels, invade normal tissues and organs, or even metastasize and spread to other sites. If the surgery is not clean or difficult to remove, chemotherapy and radiation are needed to kill the tumor cells, so the survival rate is lower than that of benign tumors.
(2) Different tumor sites and stages
The lancet, a top journal, published data on the survival rate of nearly 660,000 Chinese cancer patients between 2003 and 2015. The survival rate of different cancer sites varied greatly, for example, the survival rate of thyroid cancer was as high as 84.3%, while the survival rate of pancreatic cancer was only 7.2%. Even if it is a cancer of the same site, its survival rate is related to the nature and stage of cancer. Early cancer often has a higher survival rate than late cancer. Therefore, cancer can be detected and treated as early as possible through regular physical examination to improve survival rate.
(3) Individual differences of patients
Different genders, different ages and different physical qualities also have different survival rates for the same cancer, and women tend to have a higher survival rate than men. The older the age, the lower the survival rate. Cancer patients with other diseases also had lower survival rates. So cancer survival depends on individual differences between patients.
(4) Diagnosis and treatment level
Differences in the level of medical care patients receive, and even the medical information they receive, can affect their survival. Patients are often less likely to choose chemotherapy if they know the prognosis is poor. The level of surgery is also related to whether the tumor is clear and clean and whether it recurs.
Having a tumor is not terrible, not all tumor patients do not live long, as long as actively cooperate with treatment, some tumors can survive very well.