In modern society, with fast-paced life and stressful work, coupled with deteriorating environmental factors, the incidence of cancer is getting higher and higher. Many people are afraid of being related to cancer once they suffer from a certain disease, which is somewhat unfounded, but some common diseases are indeed inextricably linked to cancer. If you have any of the following diseases, you should pay attention to them and make sure to treat them early. 1. Thyroid nodules The occurrence of thyroid nodules is related to age, gender and history of radiation exposure to the neck. Statistics show that the incidence of thyroid nodules is four times higher in women than in men. Multiple thyroid nodules are mostly benign, and a single thyroid nodule is more likely to be malignant, so if you find a lump in your thyroid gland, go to the hospital in time to get a diagnosis. 2.Gastrointestinal polyps Many gastrointestinal cancers are evolved from polyps, especially adenomatous colon polyps, which have higher cancer rate. Some surveys show that the incidence of colon cancer in colon polyp patients is 3 to 5 times higher than the general population, and can be 10 times higher in multiple cases. Gastrointestinal polyp cancer is related to many factors, such as size, type, number, etc. Once diagnosed, it should be treated. 3.Helicobacter pylori Infection of Helicobacter pylori has a promoting effect on the occurrence of gastric cancer. This bacteria in the body can lead to chronic diseases and gastric ulcers. Therefore, patients with old stomach diseases need to have regular checkups in the hospital. If it is H. pylori, standardized treatment should be carried out. Many patients develop gastric cancer after decades of old gastric disease because they were not aware of it before and delayed the disease. 4.Chronic ulcer disease Ulcers are very common, and many people often do not take these “minor diseases” seriously. However, chronic ulcers may become cancerous in the long term. But if the same ulcer is not well for weeks or even a month, it may be closely related to oral cancer. “Stomach ulcer is also like this, if it occurs repeatedly and the gastric mucosa is repeatedly stimulated by breakage, it may become malignant and gastric cancer may occur. 5.Cystic hyperplasia of breast According to statistics, about 20% of cases of adenomatous hyperplasia that do not heal for a long time can become malignant, and women with cystic hyperplasia of breast have four times the chance of breast cancer than healthy people. Patients with cystic hyperplasia should have regular checkups for early detection of cancerous changes. 6, sinusitis Many people suffer from sinusitis repeatedly flowing pus, so they think it is sinusitis and do not take it seriously. Unbeknownst to them, long-term inflammatory stimulation can lead to cancer of sinus. Like middle ear cancer, even if sinus cancer occurs, the early symptom may be pus nasal discharge, but when painful bleeding occurs, the lesion may be more serious. 7.Hepatitis Primary liver cancer is one of the common malignant tumors in human. Data show that there are 500,000-1 million new cases worldwide every year. More than half of these cases are in China, and there is a clear relationship between hepatitis B virus (HBV) infection and hepatocellular carcinogenesis. Early antiviral treatment of chronic hepatitis and prevention of cirrhosis are important to reduce the incidence of cirrhosis and hepatocellular carcinoma. The main preventive measures for hepatitis B are prevention of mother-to-child transmission, blood transmission and vaccination against hepatitis B. There is no vaccine for hepatitis C at this stage, so it is necessary to prevent mother-to-child transmission, prevention of injection, blood transfusion, surgical contamination and sexual transmission. 8. Cervical erosion The survey found that women with cervical erosion have a significantly higher incidence of high cervical lesions than those without cervical erosion. Experts say that the symptoms of cervical cancer are very similar to those of celiac disease, so it is easy to be ignored and requires extra vigilance. Some researchers point out that the prevalence of cancer in diabetic patients is higher than that in non-diabetic patients, and the more obvious cancers include endometrial cancer, breast cancer, prostate cancer, colon cancer and pancreatic cancer. This is related to the high prevalence of obesity among diabetics, as well as to high blood sugar. In addition, some studies have shown that glucose-lowering drugs that increase blood insulin levels may also increase the risk of cancer in patients.