Diabetes Mellitus

Understanding Diabetes Mellitus, Warning Signs, and Care Tips

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What is Diabetes Mellitus?

Diabetes, once diagnosed, is present for life.  Diabetes Mellitus is a chronic disease which afflicts about 16 million people in the United States, half of whom are unaware they have the disease. It is a metabolic disease characterized by elevated glucose (blood sugar), resulting from defects in secretion of the hormone insulin, defects which cause tissue to resist absorption of insulin, or both.

Chronic elevation of blood sugar (hyperglycemia) is associated with long-term damage to the eyes, heart, kidneys, feet, nerves, and blood vessels. About 15 percent of those with diabetes will develop an open wound (ulceration) on a foot during their lifetimes, and 20 percent of these ulcerations will lead to amputations. The annual incidence of non-traumatic lower extremity amputations among people with diabetes is about 54,000, according to the American Diabetes Association. Among African-Americans, the amputation rate is 1 1/2 to 2 1/2 times that of Caucasians, and Native Americans have even higher rates, three or four times that of Caucasians. Diabetes, once diagnosed, is present for life. Considerable research is focused on finding a cure, and much progress has been made in treatment and control of the disease. 

What are Warning Signs of Diabetes Mellitus?

For the person with diabetes who has not yet developed foot complications, there are warning signs which should be recognized and called to the attention of your podiatrist or your family physician. Warning signs include:

  • Color changes of the skin
  • Elevation of skin temperature
  • Swelling of the foot or ankle
  • Pain in the legs, either at rest or while walking
  • Open sores, with or without drainage, that are slow to heal
  • Ingrown and fungus-infected toenails
  • Corns or calluses with bleeding within the skin
  • Dry fissures (cracks) in the skin, especially around the heel
Symptoms of Diabetes Mellitus

Those who have any of the following symptoms and have not been tested for hyperglycemia should see a physician without delay.

  • Frequent urination 
  • Excessive thirst 
  • Extreme hunger 
  • Unexplained weight loss 
  • Tingling or numbness of the feet
  • Tingling or numbness of the hands 
  • Blurred vision 
  • Slow-to-heal wounds 
  • Susceptibility to certain infections
What is Type I Diabetes?

Type I, insulin-dependent diabetes mellitus, once referred to as juvenile, or juvenile-onset diabetes, afflicts five to 10 percent of people with diabetes.

What Is Type II Diabetes?

The majority of people with diabetes have type II diabetes.  Type II, non-insulin-dependent diabetes mellitus, once known as adult-onset diabetes, afflicts the other 90-95 percent, many of whom use oral medication or injectable insulin. The vast majority of those people (80% or more) are overweight, many of them obese. Obesity itself can cause insulin resistance. The socioeconomic costs of diabetes are enormous. The dollar costs have been estimated at $92 billion annually, about equally split between direct medical costs and indirect costs. Diabetes is the fourth leading cause of death by disease in the United States. Individuals with diabetes are two to four times as likely to experience heart disease and stroke. It is the leading cause of end-stage kidney disease and new cases of blindness among adults under 75. The trauma of amputation is particularly debilitating. It often ends working careers, and restricts social life and the independence which mobility affords. For more than 50 percent of those who experience an amputation of one limb, the loss of another will occur within three to five years. The key to amputation prevention is early recognition and foot screening, at least annually, of at-risk individuals.

What Does it Mean to be "High Risk?"

Those individuals considered to be at high risk are those who exhibit one or more of six characteristics: (1) peripheral neuropathy, a nerve disorder generally characterized by loss of protective sensation and/or tingling and numbness in the feet; (2) vascular insufficiency, a circulatory disorder which inhibits blood flow to the extremities; (3) foot deformities, such as hammertoes; (4) stiff joints; (5) calluses on the soles of the feet; and (6) a history of open sores on the feet (ulcerations) or a previous lower extremity amputation.

What is Ulceration? Am I at Risk?

Ulceration is a common occurrence of the diabetic foot. Poorly fitted shoes, or something as seemingly trivial as a stocking seam, can create a wound that cannot be felt and may not immediately be seen by someone whose level of skin sensation has been minimized. Left unattended, such an ulcer can quickly become infected and lead to serious consequences. Visit a Podiatric Physician regularly.

What are Some Ways to Prevent Ulceration?

There is a sizable list of “do’s and don’ts” when it comes to preventing Ulcerations. Shoes are at the top of the list. Poorly fitted shoes are involved in as many as half of the problems that lead to amputations. Foot shape and size may change over the years; peripheral neuropathy contributes to change. Everyone, particularly those with diabetes, should be fitted by experienced shoe fitters for every new pair of shoes. New shoes should be comfortable at the time they’re purchased — they should not require a break-in period — but it is a good idea to wear them for only short periods of time at first. Shoes should have leather or canvas uppers, fit both the length and width of the foot, leaving room for the toes to wiggle freely, and be cushioned and sturdy. Athletic footwear may fit the bill nicely. It’s a good idea to change shoes during the day, to relieve pressure areas. Avoid high heels and shoes with pointed toes. Never wear shoes with open toes or heels, including sandals, especially those with straps between the first two toes. Shake shoes out and feel inside them for rough stitching or foreign objects, such as small pebbles. Never go without socks. Diabetics who have difficulty finding shoes that fit should ask their podiatrist to prescribe corrective shoes, or refer them to a shoe specialist (a pediatrist.) For those eligible, Medicare provides coverage for extra depth shoes or specially molded shoes, and inserts, for those with advanced cases of diabetes.

How do Podiatric Physicians Help Individuals with Diabetes Mellitus?

The Role of the Podiatric Physician The podiatrist is a foot care specialist with skills in recognition and treatment of diabetic foot conditions. Because diabetes is a systemic disease, affecting many organs of the body, ideal case management requires a team approach, involving the podiatrist as well as the family physician, several medical specialists, and a dietitian. Your podiatrist, as an integral part of the treatment team, has documented success in the prevention of amputations. It is one of the most serious conditions treated by podiatric physicians, whose training stresses salvage of the foot rather than amputation. A comprehensive approach to prevention of complications must include good glucose control, adherence to diet, an exercise program, proper medication and hygiene, and regular foot care. Those who follow the medical team’s advice have a good chance of preventing or delaying the complications of the disease, and living normal lives. Furthermore, with such a regimen as groundwork, it is estimated that more than half of the lower extremity amputations among people with diabetes could be prevented.

What are Important General Care Tips for Individuals With Diabetes Mellitus?
  • Wash feet daily, using mild soap and lukewarm water. Those with diabetes should always test bath water temperature with a thermometer or the elbow, since the feet may be unable to detect scalding temperatures. Dry feet carefully with a soft towel, especially between the toes, and dust them with talcum powder. If the skin is dry, use a small amount of moisturizing cream daily, but avoid getting it between the toes.
  • Feet and toes should be inspected daily for cuts, bruises, and sores, or other changes that are less obvious. If self-inspection is hampered by age or other factors, use a mirror or get the assistance of another person.
  • Wear thick, soft socks; avoid mended socks or those with seams, which could cause blisters or other skin injuries. Never go barefoot, even inside your own home, and especially out of doors on unfamiliar terrain such as the beach or grassy areas.
  • Quit smoking. The consumption of alcohol should be moderated. Tobacco can contribute to circulatory problems, and should be stopped. 
  •  Exercise is important. Walk as frequently as possible; it’s the best overall conditioner for the feet.
  • Observance of good dietary habits is important. People with diabetes are commonly overweight. This approximately doubles the risk of complications they may face. 
  • For cold feet at night, wear loose socks.  Don’t use heating pads or hot water bottles, or other external heat sources. 
  • Don’t use garters or elastics to hold up stockings. 
  •  Cut toenails straight across, or if in doubt, see a podiatrist. If you are diabetic and have Medicare, your Medicare benefits very often cover the treatment of your toenail problems. 
  • Never try to cut calluses with a razor blade, or anything else, without professional guidance, and never use commercial preparations to remove corns or warts as they contain chemicals which can burn the skin.

Learn More

Are you experiencing Ulceration pain? Other Diabetic foot pains? Learn more about your diagnosis and treatment plans by calling Dr. Burns at our Scottsdale Podiatry center.

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You can schedule an appointment online with the button below, or by calling our Scottsdale, AZ podiatry office. For general questions about Footcare Physicians of Scottsdale, PLLC, Dr. Steven Burns, or Arizona Foot Doctors, please contact the office or email us at info@nullarizonafootdoctors.com.

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