December 3, 2023

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20% of cancers are caused by bacteria and viruses!

20% of cancers are caused by bacteria and viruses!


20% of cancers are caused by bacteria and viruses! Be careful of these 5 types, don’t ignore them anymore


The high incidence and high mortality rate of cancer, let us talk about “cancer” discoloration in our life.

A large part of the fear comes from our lack of understanding of cancer. After scientific understanding, you will find that cancer is not so scary and can be prevented. can also cure…


According to the International Union Against Cancer, 12 million people worldwide are diagnosed with cancer every year , and about 20% of them are attributable to viral or bacterial infections !


In our daily life, we inevitably come into contact with various bacteria, viruses, parasites, etc. Therefore, we should pay more attention to cancer caused by infection.


Beware of 3 types of viruses that may become carcinogens


 1.Hepatitis B virus (HBV) – primary liver cancer

Hepatitis B virus (HBV) infection increases the incidence of liver cancer , which is a clear conclusion.


” Hepatitis – cirrhosis – liver cancer ” is the “three steps” for the development of viral hepatitis into liver cancer. According to the survey, about 70-80% of liver cancers develop from hepatitis B , that is to say, if hepatitis B is not treated in a timely manner, it may be only one step away from liver cancer.


HBV infection itself has no direct cytotoxic effect, but the persistently replicated virus in the body undergoes phagocytosis processing, which activates the immune response and induces immunopathological damage to the liver .


When liver cells are damaged, they will generate collagen fibers to repair, but once the collagen fibers accumulate too much, the liver will become soft and hard, resulting in cirrhosis . If it is not controlled, liver cancer may come to the door.


20% of cancers are caused by bacteria and viruses!


Ways for spreading

Blood transmission, mother-to-child transmission, sexual transmission.

Patients with chronic hepatitis B generally experience clinical symptoms such as fatigue, loss of appetite, nausea and liver discomfort, and are accompanied by abnormal laboratory indicators.


Prevent hepatitis

① Hepatitis B vaccination is the best way to prevent hepatitis B. In particular , high-risk groups such as immunocompromised people, family members of hepatitis B patients, and medical staff who have been in contact with patients for a long time must be vaccinated in time.

② For ordinary people, a physical examination can be done once a year . The items include liver function, hepatitis B five items, etc. These items will help to find out whether the liver is infected by the virus as soon as possible.


2. Human Papillomavirus (HPV) – Cervical Cancer

Women who are infected with HPV are more likely to get cervical cancer than women who are not infected , but this does not mean that being infected with HPV is the same as getting cervical cancer.

Among the hundreds of HPV viruses, only 13 may cause cervical cancer. Severe and high-risk types and 5 intermediate-risk types .


Relevant data show that up to 75% of women have been infected with HPV in their lifetime, and more than 80% of HPV virus infections can be cleared by the human immune system , but those higher-risk viruses that cannot be cleared may cause persistent infection , increasing Cervical cancer risk .


Prevention method

①Vaccination of HPV vaccine : There are three types of HPV vaccines on the market: bivalent, quadrivalent, and 9-valent. Among them, 9-valent vaccine can prevent 90% of cervical cancer.

②Regular screening : The screening methods for cervical cancer mainly include HPV inspection, TCT inspection, and colposcopy .


It is recommended that women aged 21-29 have a TCT examination every 3 years ; women aged 30-65 have a TCT examination every 3 years , or a TCT and HPV examination every 5 years ; women over the age of 65 with normal examination results are recommended , no further screening is necessary.


Ways for spreading

The transmission of HPV virus is mainly through sexual transmission , so it is also important to pay attention to sexual life and menstrual hygiene to prevent cervical cancer.


If you have irregular vaginal bleeding, contact bleeding, leucorrhea with bloody or rice soup-like or fishy odor, warts on the lower limbs or private parts, low back pain and more obvious pain after lying down, you should be alert to cervical cancer.



3.  Epstein-Barr virus – nasopharyngeal carcinoma, lymphoma

Epstein-Barr virus is a herpes virus that is ubiquitous in the world, not only in nasopharyngeal cancer and lymphoma , but also in recent years, studies have shown that gastric, lung, breast and cervical cancer are also associated with it.


Usually, the EB virus that enters the human body will be latent in B lymphocytes for a long time, and the virus does not replicate and only express a small number of genes.


In the absence of external incentives and the immune system of the infected person is normal, they can remain latent; but when the immune function of the body is low , the latent EBV will be activated to cause infection. In cooperation with other factors, it may eventually lead to Nasopharyngeal cancer or other diseases.


Ways for spreading

EB virus is mainly transmitted through saliva , so the key to prevention is to pay attention to oral hygiene , including the use of public chopsticks during dinner parties .


Early symptoms of Epstein-Barr virus infection

A rash on the roof of the mouth , or small reddish papules in clusters of red spots on the face .




2 Dangerous Bacteria That May Cause Cancer


In addition to viruses, some bacteria are also related to the occurrence of cancer.

The most clear and representative one is the relationship between Helicobacter pylori (Hp) and gastric cancer.

The World Health Organization has listed Hp as the number one factor causing gastric cancer.


1. Helicobacter pylori – gastric cancer

There are many patients infected with Helicobacter pylori. This bacteria will enter the stomach with food and destroy the gastric mucosa.

When the gastric mucosa is caught in repeated destruction and repair for a long time, it may mutate and form tumors.


The progression of Helicobacter pylori infection to gastric cancer

Helicobacter pylori infection → chronic superficial gastritis → atrophic gastritis → intestinal metaplasia → dysplasia → gastric cancer


Ways for spreading

Helicobacter pylori can be transmitted through the mouth , saliva, etc. , so there is a certain family aggregation , and it is necessary to prevent the disease from entering through the mouth.


Pay attention to the hygiene of tableware , clean and sterilize it regularly; eat less raw and cold food ; it is best to develop the habit of using public chopsticks during dinner parties ; usually eat foods that can protect the gastric mucosa , such as fungi.


The harm of Helicobacter pylori to the human body is not limited to the stomach , but also increases the risk of diseases such as peptic ulcer, liver disease, unexplained iron deficiency anemia, lymphoproliferative gastric lymphoma, etc., and must be treated in a standardized manner.

At present, the commonly used “quadruple therapy” – proton pump inhibitor + bismuth + two antibiotics, the course of treatment generally ranges from 10-14 days.


In addition, it is recommended that ordinary people start gastric cancer screening from the age of 40 , including gastroscopy, Hp testing, etc.


2. Long-term imbalance of gut flora – colorectal cancer

We all know that there are beneficial bacteria and harmful bacteria in the intestinal flora.

Under normal circumstances, the two are in a state of balance, but when the ecology in the body is out of balance, some harmful bacteria will quickly dominate.


Although no studies have confirmed that colorectal cancer is associated with specific microorganisms, a considerable number of cancer-promoting bacteria have been found in the human gut , including Bacteroides fragilis, Enterococcus faecalis, Helicobacter hepaticus, Bacteroidetes, Firmicutes and Clostridium. Bacilli, Lactococcus and Fusobacterium .


The structure of intestinal flora and its metabolites can affect the susceptibility of the body to diseases, and may even directly induce pathological states such as colorectal cancer . Therefore, it is very important to maintain the stability of intestinal flora.


Maintain gut health

①Dietary fiber : It can shorten the residence time of feces in the intestinal tract, reduce the absorption of harmful substances , strengthen probiotics, and improve the barrier function of the intestinal tract . Thereforeit is very important to eat more whole grains, vegetables and fruits appropriately.

② Resistant starch : It can be fermented by intestinal microorganisms to generate short-chain fats such as butyric acid, which can enhance the immunity of intestinal cells and help inhibit the growth of cancer cells .


You can add cool sweet potatoes, potatoes, corn and other foods containing resistant starch to your daily routine.


The body is a unified whole, and damage to local organs may also cause abnormalities in other organs.

If you are infected by the above bacteria or viruses, it is recommended to seek medical attention in time to avoid aggravation of the condition.


But it does not mean that once infected, it will definitely cause cancer.

As long as we treat it in time, block the development of the disease, and remove harmful bacteria or viruses at the same time, we can also prevent the occurrence of cancer.




20% of cancers are caused by bacteria and viruses!

(source:internet, reference only)

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