Cancer is actually a malignant tumor. Everyone is familiar with tumors, but not all tumors are cancer. Tumors can be divided into two types: one is benign tumor and the other is malignant tumor.
Cancer refers to malignant tumors, and benign tumors are not cancers. Because benign tumors are just local lumps or lesions in the body, their growth rate is very slow, and they will not spread to other organs and tissues of the body, and will not affect the health of other parts of the body.
Malignant tumors are different. The reason why they are called cancer is because their growth rate is very fast. What is important is that they metastasize and can be metastasized through blood to various parts of the body.
The occurrence of cancer is related to many factors. When cancer occurs, the body will also send you a warning signal, especially the neck area where lymph nodes is denser. If the following symptoms appear on the neck, it is best to go to the hospital for a check-up. The causes of
are not fully understood. The current clear factors are as follows:
. Bad living habits: such as smoking, intake of a large amount of strong alcohol , high-energy and high-fat diet, contamination of drinking water, moldy food, etc.;
. Chemical or physical carcinogens in the environment enter the human body through the body surface, respiratory tract, and digestive tract, causing cancer;
, biological factors : Can also cause cancer under certain conditions. Biological factors are usually caused by viruses;
. Trauma and local chronic inflammatory stimulation: burn , scar , and chronic skin ulcers can also become cancerous;
. Some medical examinations and treatments also have the possibility of carcinogenicity;
6. Direct genetic tumors are only a few, and most genetic factors only increase the body's tendency to develop tumors and susceptibility to carcinogenic factors;
7. Congenital and acquired immunodeficiency is also prone to malignant tumors;
8. Hormone abnormalities in the body are also one of the factors that induce cancer.
What are the symptoms of "neck"?
——The neck becomes thicker
Normal people’s neck will not generally become thicker, but for cancer patients, the neck may become thicker. There are two reasons for cancer patients’ neck thicker.
The first type is that cancer cells metastasize and compress or block the upper vena cava , causing poor blood flow back to the neck, which in turn causes swelling of the neck;
The second type is that cancer directly metastasizes and spreads to the neck. Because the neck has less fat and its position is more conspicuous, it is easy to be discovered when there is a problem.
Simply put, if the cancer is in the early stage and there is no metastasis, it is not easy for us to see changes in the neck, but if the neck becomes thicker and thicker, it should be taken seriously enough.
Clinically, such as thyroid cancer , nasopharyngeal cancer and lung cancer can easily invade the neck when metastases occur, resulting in thickening of the neck. If you have a lump and feel tender when touching the neck, it is best to seek medical treatment for examination.
——There is spider nevus on the neck
spider nevus belongs to the vascular nevus formed by the expansion of the end of the skin artery. The center is a bulge, and multiple capillaries seep out around it. From the appearance analysis, it looks particularly like a spider, so it is called a spider nevus.
Spider nevi is a bit different from ordinary moles. If you press the center of it with a match stick, the spider nevi will disappear, and after the pressure is relieved, the spider nevi will appear again.
The formation of spider nevi is closely related to the increase of estrogen in the human body. The liver is the main organ of inactivated estrogen in the human body. If there is a problem with the liver, the estrogen level in the body will increase. If there is abnormality in the liver or oral contraceptive pills, it is also easy to have spider nevi.
When cancer occurs in the human body, it will invade the liver, causing liver function to decline, which will lead to reduced estrogen inactivation and lead to spider nevus on the neck. Female Ovarian granulocytoma , which will secrete a large amount of estrogen, causing hormone levels to increase and spider nevus.
The occurrence of spider nevi is related to many factors, but as long as it appears, it is likely that there is a physical problem. It is recommended that everyone seek medical treatment as soon as possible to avoid damage to their own body.
——Neck turns black
Clinically, the most common cause of black neck is acanthosis nigrican. The blackness of the neck mainly occurs on the back of the neck. Comprehensive analysis shows that nigra is mainly related to metabolic abnormalities, and its common causes include obesity, diabetes , polycystic ovary syndrome , and certain tumors.
Although black diseases are not cancers, they are common cancers caused by certain malignant tumors. For example, gastric cancer , gallbladder cancer and ovarian cancer will secrete certain active factor , causing abnormal skin metabolism and acanthosis nigricans.
When the neck is abnormally black, you must look for the cause. If you are obese, you must lose weight appropriately. If you are taking certain drugs, you must consult a doctor to adjust the dosage. Of course, you must also pay attention to physical illness issues.
There are many factors that occur in cancer itself, so we must pay great attention to it so that more serious problems can be avoided. It is recommended that everyone pay more attention to physical care and avoid health damage.
Knowledge Expansion - Who needs cancer screening?
1. People with family history of cancer
People with family history of cancer should be able to undergo cancer screening as soon as possible. This type of person contains cancer susceptibility genes, and the chance of getting cancer is much higher than that of ordinary people. Early cancer screening can detect signs of cancer in a timely manner, which is of great significance to cancer prevention.
2. People in the high-incidence areas of cancer
If you are in the high-incidence areas of cancer, it is best to do cancer screening as well. For example, the incidence of nasopharyngeal cancer is relatively high in Guangdong, so people in this area should undergo nasopharyngeal cancer screening as soon as possible.
3. People with precancerous lesions
People with precancerous lesions should also undergo cancer screening. For example, severe hyperplasia and dysplasia were found when suffering from polyps or gastroscopy . These are common precancerous lesions, and it is necessary to do cancer screening as soon as possible.
Source: Yijie Health Zhang Yi, majoring in traditional Chinese medicine doctor Jishan County Huayu Town Central Health Center
