Signs indicating the initial onset of diabetes include frequent urination, excessive thirst, extreme fatigue and slow-healing injuries, according to the American Diabetes Association. These symptoms may be so mild that a patient deems them non-serious, but a physician consultation is advised when other risk factors for the disease are present.
According to Mayo Clinic, diabetes causes excess sugar to accumulate in the blood, which taxes the kidneys as they try to eliminate it. During this process the kidneys use extra fluid from the body, causing dehydration and extreme thirst. The patient then consumes extra fluids to compensate, which causes an increase in urination. These processes consume so much of the body’s energy that constant fatigue often results.
Mayo Clinic notes another sign of diabetes is injuries that are slow to heal. Additionally, research has not determined why, but diabetes increases the incidence of infections and the time it takes them to resolve.
The American Diabetes Association lists other signs of diabetes, including extreme hunger despite eating and blurred vision. Weight loss is a sign of type 1 diabetes, and numbness and tingling in the extremities is a sign of type 2 diabetes. Type 2 diabetes and gestational diabetes often have no noticeable signs.