According to the information currently available, there is no necessary connection between diabetes and cancer. The statement that diabetes can cause cancer lacks sufficient and convincing clinical evidence. Because the immunity and resistance of diabetic patients are lower than that of normal people, the probability of some cancers in this group of people may be higher, but not all diabetic patients will suffer from cancer. Moreover, there is no evidence that the use of diabetes drugs will lead to the occurrence of tumors.

However, a large-scale study of Japanese adults found that diabetics are more prone to cancer, especially some special tissues, such as pancreas and liver. Researchers at Japan's National Cancer Research Center surveyed 98,000 diabetic men and found that their chances of developing cancer were 27% higher than those of men without diabetes. At the same time, women with diabetes may be prone to some cancers.

Experts point out that type 2 diabetes can produce excessive insulin (hyperinsulinemia) and promote the growth of cancer cells in the liver or pancreas. At the same time, diabetes can also change the level of sex hormones, easily causing ovarian cancer in women and prostate cancer in men. Therefore, diabetic patients need to pay more attention to this and be vigilant.