The causes of type 1 diabetes appear to be much different than those for type 2 diabetes, though the exact mechanisms for development of both diseases are unknown. The appearance of type 1 diabetes is suspected to follow exposure to an "environmental trigger," such as an unidentified virus, stimulating an immune attack against the beta cells of the pancreas (that produce insulin) in some genetically predisposed people.

Changing hormones and weight gain are part of a healthy pregnancy. But both changes make it hard for your body to keep up with its need for a hormone called insulin. When that happens, your body doesn't get the energy it needs from the food you eat.

The exact cause of diabetes is unknown. Heredity may play a role in developing both types, but is most often associated with type 2. Eating sweets does not cause diabetes, but must be limited to help control it. Being overweight, certain medications (ex: thyroid hormone, glucocorticoids, etc.) and emotional and physical stress related to medical conditions such as pregnancy, illness and surgery, can play a role in its development.

Answer: The actual cause of varicose veins is inefficient, faulty vein valves. These valves don't close properly, allowing blood to leak back with gravity and pool in the vein. This causes the veins to bulge and stretch and result in many unpleasant side effects such as aching and throbbing pain, heavy and tired legs, and poor circulation.

For many years, veterinarians have known that obesity in cats seemed to make the obese patient more likely to get diabetes. In fact, most of us thought that overweight actually caused diabetes. Today, I do not believe excess pounds in a cat are a cause of this condition. I believe that obesity in the cat and feline diabetes have the same “parent” causes, but are not a cause of one another.

Diabetes mellitus is caused by an absolute or relative deficiency of insulin. Animals with an absolute or relative deficiency of insulin are called diabetics. Other diseases or the presence of other hormones – may be antagonistic to insulin or cause resistance to insulin. Insulin is unable to function normally in the body.