What is the link between diabetes and breast cancer? Through research and survey many female diabetic patients have more chance to suffer from breast cancer than normal people, it can be seen that there is a certain association between diabetes and breast cancer disease risk, so female diabetic patients should pay attention to choose the right treatment method and adhere to some basic therapies in the process of treatment to better control the diabetes condition and reduce the risk of breast cancer. (i) Diabetes is closely related to increased risk of breast cancer Many experts have investigated diabetes and breast cancer patients, and later found that there is a certain association between diabetes and breast cancer risk. A case-control study in Sweden showed an association between diabetes and a 40% increased risk of breast cancer, studied by Professor HakanOlsson. Even after adjusting for confounding such as obesity and dyslipidemia, the two were still associated, especially if the cancer was diagnosed within 4 years. The authors also found a correlation between diabetic patients using the long-acting insulin analogue glargine insulin (Lexapro, Serofi) and overall cancer risk. The oral glucose-lowering drug metformin, on the other hand, had the opposite trend of reducing cancer risk, but there was no statistically significant difference.