Why would I need an amputation if I have diabetes and I have a foot ulcer?

infection. Poor circulation is the primary reason diabetics need amputation. The next most common reason is a bone infection. This happens when a soft tissue infection has festered down into the bone. Antibiotics will help treat the infection, but surgery to scrape the bone is often required. If surgery can't erradicate all the infected bone sometimes amputation is done to prevent spread of infection.
Infection / Flow. Uncontrolled infection and poor vascular blood flow are the most common reasons causing diabetic the need to have a foot amputation.
Inadequate bloodflow. The main problem with diabetes & feet is that diabetes causes decreased blood flow in the distant parts of the body (e.g. Feet) leading to nerve starvation so that sensation decreases. Then a cut can go unnoticed and get infected spreading to the bone. Antibiotics can only help if it can be carried by the blood to the site. If not, the infection spreads. Amputation is the only option left then.

Related Questions

Is it possible to have to get your foot amputated from a foot ulcer?

Yes. Is it is not cared for properly and severe infection or gangrene develops. If you have an ulcer, see physician immediately. Read more...
Yes. If the foot ulcers gets severely infected, the infection could spread to bone and could lead to loss of limb or even life. Have the ulcer properly evaluated and treated to avoid preventable complications. Read more...

If I have a foot ulcer, do I have diabetes?

No. There are many causes of foot ulcers, pressure, ischemia, diabetes, and other conditions. I would certainly get checked for all of these. Read more...
Not necessarily. The 2 do not always go together. If concerned have your doctor test you. Read more...
No necessarily. You do not need to be diabetic to have a foot ulcer. Read more...

Does having a foot ulcer mean you have to amputate your foot?

No, however.. If the foot ulcers gets severely infected, the infection could spread to bone and could lead to amputation, loss of limb or even life. Have the ulcer properly evaluated and treated to avoid preventable complications. Read more...