A whole range of issues start to crop up when diabetes is left untreated. Excess sugar in the blood can lead to more persistent yeast infections (yeast love sugar). High blood sugar can also affect blood flow, which leads to slower healing for sores and wounds. Over time, the condition can lead to Peripheral Artery Disease (PAD), which causes blood vessels to narrow, lending to a condition called peripheral neuropathy that results in a person not feeling pain. And without a sense of pain after an injury or development of an ulcer, the patient may not realize the wound is progressing – amputation may even be required to save him or her from sepsis.
Abnormal cholesterol and triglyceride levels. If you have low levels of high-density lipoprotein (HDL), or "good," cholesterol, your risk of type 2 diabetes is higher. Triglycerides are another type of fat carried in the blood. People with high levels of triglycerides have an increased risk of type 2 diabetes. Your doctor can let you know what your cholesterol and triglyceride levels are.