The high incidence and mortality rate of cancer make us shy about talking about “cancer” in our life. Most of our fear comes from our ignorance about cancer. After scientific understanding, you will find that cancer is not so terrible, it can be prevented and treated…

According to the International Union against Cancer: the world is diagnosed with 12 million cases of cancer every year, and about 20% of these cases are due to viral or bacterial infections!

In our daily life, we will inevitably come into contact with a variety of bacteria, viruses, parasites and so on. Therefore, we should pay more attention to cancer caused by infection.

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Beware of class 3 viruses, which may be carcinogenic factors

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Hepatitis B virus (HBV) – primary liver cancer

It is well established that hepatitis B virus (HBV) infection increases the risk of liver cancer.

“Hepatitis – cirrhosis – liver cancer” is the “three steps” from viral hepatitis to liver cancer. According to investigation shows, about 70 ~ 80% of liver cancer develops by second liver and come, that is to say, if second liver is not treated in time standard, the likelihood and liver cancer were separated by one step only difference.

HBV infection itself has no direct cytotoxic effect, but the virus in vivo continues to replicate after phagocytic processing, will activate the immune response, induced liver immune pathological damage.

When liver cells are damaged, collagen fibers are generated to repair them. However, once collagen fibers accumulate too much, the liver will become soft and hard, forming cirrhosis. If not controlled, liver cancer may come to the liver.

Route of transmission

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

Patient of chronic second liver can feel fatigue and lack of power, inappetable, disgusting and liver area unwell wait for clinical symptom commonly, companion has assay index at the same time abnormal.

The prevention methods

1, hepatitis B vaccination is the best way to prevent hepatitis B. In particular, people with low immunity, family members of hepatitis B patients, medical personnel who have long-term contact with patients and other high-risk groups must be vaccinated in time.

2, for ordinary people, you can do a physical examination every year, including liver function, hepatitis B five items, these items help to find early whether the liver is infected by the virus.

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Human papillomavirus (HPV) – Cervical cancer

The possibility of cervical cancer in women infected with human papillomavirus is significantly increased than that in women without infection, but this is not to say that infection with HPV is equal to cervical cancer, hundreds of HPV viruses, may cause cervical cancer only 13 high-risk type and 5 medium-risk type.

Up to 75 percent of women will be infected with HPV in their lifetime, and more than 80 percent of HPV infections can be cleared by the body’s immune system, but the high-risk viruses that can’t be cleared can cause persistent infections and increase the risk of cervical cancer.

The prevention methods

1, get HPV vaccine: now there are two, four, nine of these three types of HPV vaccine on the market, nine of the vaccine can prevent 90% of cervical cancer.

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

TCT examination is recommended every 3 years for women aged 21 to 29. Women aged 30 to 65 had TCT every 3 years or TCT and HPV every 5 years; Women over 65 with normal results from regular tests may no longer be screened.

Route of transmission

HPV is mainly transmitted sexually, so it is also important to pay attention to sexual and menstrual hygiene to prevent cervical cancer.

If the occurrence of irregular vaginal bleeding, contact bleeding, white with blood color or rice soup like or have a fishy smell, lower limbs or private director wart, lumbago and lying down after the pain more obvious symptoms, to guard against cervical cancer.

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Epstein-barr virus – nasopharyngeal carcinoma, lymphoma

Epstein-barr virus (EPSTEin-Barr virus) is a herpes virus ubiquitous in the world. It is not only associated with nasopharyngeal and lymphatic cancers, but also with gastric, lung, breast and cervical cancers in recent years.

Typically, epstein-Barr virus enters the human body and remains dormant in B lymphocytes for a long time. The virus does not replicate and only expresses a small number of genes.

In the absence of external triggers and with normal immunity, they can remain dormant forever; However, when the immune function of the body is low, the latent EPstein-Barr virus will be activated and cause infection, which may eventually lead to nasopharyngeal cancer or other diseases in coordination with other factors.

Route of transmission

Epstein-barr virus is mainly transmitted through saliva, so the key to prevention is to pay attention to oral hygiene, including the use of chopsticks when eating together.

Early symptoms of epstein-Barr virus infection

Red rash on the palate of the mouth, or clusters of reddish papules on the face with red spots.

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These bacteria may cause cancer

In addition to virus, some bacteria are also related to the occurrence of cancer, among which the most clear and representative is helicobacter pylori (Hp) and gastric cancer, the world Health Organization has listed Hp as the number one factor causing gastric cancer.

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Helicobacter pylori – Stomach cancer

There are not many patients infected by Helicobacter pylori, which will enter the stomach with food and destroy the gastric mucosa. When the gastric mucosa is trapped in repeated destruction and repair for a long time, it may mutate and form tumors.

Route of transmission

Helicobacter pylori through oral cavity, saliva and other oral transmission, so there is a certain family aggregation, to prevent disease from entering the mouth.

Pay attention to the hygiene of tableware, clean and disinfect regularly; Eat less raw and cold food; You’d better get into the habit of using chopsticks when eating together. Can eat at ordinary times can protect the food of gastric mucosa, such as fungus food.

The harm of H. pylori to human body is not limited to the stomach, but also increases the risk of gastrointestinal ulcers, liver lesions, iron deficiency anemia of unknown cause, lymphatic hyperplastic gastric lymphoma and other diseases, must be standardized treatment. Currently, the commonly used “quadruple therapy” — proton pump inhibitor + bismuth + two antibiotics, the course of treatment is generally 10-14 days.

In addition, screening for gastric cancer, including gastroscopy and Hp test, is recommended for ordinary people starting at age 40.

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Long-term imbalance of intestinal flora — Colorectal cancer

We all know that there are good and bad bacteria in the gut. Normally, the two are in balance, but when things get out of balance, some bad bacteria quickly take over.

Although no specific microbes have been linked to colorectal cancer, a significant number of cancer-promoting bacteria have been found in the human gut, including Bacteroides fragilis, Enterococcus faecalis, Helicobacter hepatis, Bacteroides, Firmicutes and Clostridium, and Lactococcus and Clostridium.

The structure of intestinal flora and its metabolites can affect the body’s susceptibility 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 a healthy gut

1, dietary fiber: can shorten the residence time of feces in the intestinal tract, reduce the absorption of harmful substances, but also enhance probiotics, improve the intestinal barrier function. Because this appropriate eat coarse grain, vegetables and fruits is very important.

2. Resistant starch: it can be fermented by intestinal microbes to generate butyric acid and other short-chain fats, enhance intestinal cell immunity and assist in inhibiting the growth of cancer cells.

Daily can add a small amount of sweet potatoes, potatoes, corn and other foods containing resistant starch.

The body is a unified whole, local organ damage may also cause abnormalities in other organs. If you are infected by the above bacteria or viruses, it is recommended to seek medical advice in time to avoid worsening the condition.

But it is not to say that once infected will certainly cause cancer, as long as we timely treatment, block the development of the disease, while removing harmful bacteria or viruses, can also prevent the occurrence of cancer.