20% of cancers are caused by bacteria and viruses!

With the high incidence and mortality of cancer, let's talk about the fading "cancer" in our lives

Much of this fear stems from our lack of understanding about cancer

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

In our daily life, we inevitably come into contact with various bacteria, viruses, parasites,

Beware of three viruses that can be carcinogens

1.

"Hepatitis-hepatic cirrhosis-hepatic cancer" is the "three-step process" for the development of viral hepatitis to liver cancer

HBV infection itself has no direct cytotoxic effect, but the persistently replicated virus in the body undergoes a phagocytosis process, activates the immune response, and causes immunopathological damage to the liver

When liver cells are damaged, collagen fibers are produced to repair them, but once too much collagen fibers accumulate, the liver becomes hard, leading to cirrhosis

way to spread

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

Patients with chronic hepatitis B generally have 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, especially 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

For ordinary people, a medical examination can be done once a year

2.

Of the hundreds of HPV types, only 13 can cause cervical cancer

Relevant data show that as many as 75% of women have been infected with human papilloma virus in their lifetime, and more than 80% of HPV virus infections can coexist with the human immune system, but these high-risk viruses cannot be cleared, which may cause persistent infection and increase.

Prevention method

①HPV vaccination: There are three types of HPV vaccines on the market: bivalent, quadrivalent and 9-valent

②Routine screening: cervical cancer screening methods mainly include HPV inspection, TCT inspection and colposcopy
.

It is recommended that women aged 21-29 have TCT examinations every 3 years; women aged 30-65 have TCT examinations every 3 years, or TCT and HPV examinations every 5 years; women over 65 years old with normal test results are recommended, No further inspection is required
.

way to spread

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

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

3.
Epstein-Barr virus-nasopharyngeal carcinoma lymphoma

Epstein-Barr virus is a common herpes virus 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, the virus does not replicate and only expresses a small number of genes
.

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

way to spread

Epstein-Barr virus is mainly transmitted through saliva, so the key to prevention is to pay attention to oral hygiene, including the use of public chopsticks at banquets
.

Early symptoms of Epstein-Barr virus infection

A rash on the mouth, or small red pimples that consist of clusters of red dots on the face

2 Dangerous Bacteria That May Cause Cancer

In addition to viruses, some bacteria are also associated with the development of cancer
.

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

The World Health Organization has listed H.
pylori as the number one cause of gastric cancer
.

1.
Helicobacter pylori - gastric cancer

There are many patients infected with Helicobacter pylori
.
This bacteria enters the stomach with food and destroys the gastric lining
.

When the gastric mucosa is in a state of repeated destruction and repair for a long time, mutations may occur to form tumors
.

Relationship between Helicobacter pylori infection and gastric cancer

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

way to spread

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

Pay attention to tableware hygiene, clean and disinfect regularly; eat less raw and cold food; it is best to develop the habit of using public chopsticks at banquets; usually eat more food that has a protective effect on 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 peptic ulcer, liver disease, unexplained iron-deficiency anemia, lymphoproliferative gastric lymphoma and other diseases, and must be treated in a standardized manner
.

The currently commonly used "quadruple therapy" - proton pump inhibitor + bismuth + two antibiotics, the course of treatment is generally 10-14 days
.

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

2.
Long-term imbalance of intestinal flora - colorectal cancer

We all know that there are good and bad bacteria in the gut flora
.

Normally, the two are in balance, but when there is an imbalance in the body, some harmful bacteria can quickly dominate
.

Although no studies have linked colorectal cancer to specific microbes, a considerable number of cancer-promoting bacteria have been found in the human gut, including Bacteroides fragilis, Enterococcus faecalis, Helicobacter pylori ), Bacteroidetes, Firmicutes and Clostridium
.
Bacillus, Lactococcus and Fusobacterium
.

The structure of intestinal flora and its metabolites can affect the susceptibility of the body to disease, 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 intestine, reduce the absorption of harmful substances, strengthen probiotics, and improve the barrier function of the intestine
.
Therefore, it is very important to eat more whole grains, vegetables and fruits appropriately
.

②Resistant starch: It can be fermented by intestinal microorganisms to produce 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 that contain resistant starch to your routine
.

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

If you are infected with the above bacteria or viruses, it is recommended to seek medical attention in time to prevent the condition from getting worse
.

But that doesn't mean that once infected, it will definitely lead to cancer
.

As long as timely treatment, blocking the development of the disease, and removing harmful bacteria or viruses at the same time, can also prevent the occurrence of cancer
.