Infections as Diabetes Complications

Key points
- High blood glucose levels put you at greater risk for infection.
- If bacteria set in, they can destroy the bone in your tooth socket.
- The white blood cells attack the invading bacteria, viruses, and fungi that can cause infections.
- To make matters worse, some of the invading pathogens feed on the extra glucose in the blood, making infection even more likely.
High blood glucose levels put you at greater risk for infection.
The white blood cells attack the invading bacteria, viruses, and fungi that can cause infections. An excess of glucose makes the white cells less effective. This can keep them from reaching and killing their targets - the invading germs that cause infection.
To make matters worse, some of the invading pathogens feed on the extra glucose in the blood, making infection even more likely. People with diabetes tend to have more infections: in the mouth, ears, gums, lungs, skin, feet, and genital areas and in the incision areas after major surgery.
Other complications of diabetes can add insult to injury.
When neuropathy affects the bladder, the bladder is more likely to become infected. Neuropathy can make you unaware that you need to urinate, which increases the risk for bladder infection. If neuropathy affects your arms, legs, or feet, you may be less likely to notice a cut or burn, because you will not feel pain.
Left untreated, even minor skin abrasions can sometimes lead to infection.
There are several reasons why your legs and feet are prone to infection:
- neuropathy numbs legs and feet, making you unaware of injury and infection
- injury opens the door to infection
- diseased blood vessels slow blood flow to the legs and feet, impairing the healing process
- high blood glucose disables the body's immune cells, the white blood cells
It doesn't matter where in the body an infection happens to start - the gums, vagina, skin, or feet. Infections need to be treated. They can quickly get worse and cause serious problems.
Oral Health. People with diabetes are at high risk for gum disease and periodontitis, so you need to be extra vigilant about brushing and flossing daily. Have your teeth cleaned at least every 6 months. Bacteria love to feast on the areas between your gums and teeth.
Your Risk, in General: Infections
- Although the rate of kidney infections is about the same in people with or without diabetes, people with diabetes are twice as likely to need to be hospitalized to treat the infection.
- Almost one-third of people with diabetes have severe gum disease.
- Recurrence of tuberculosis was found to be 5 times more common among Native Americans with diabetes compared to those without diabetes.
{pagebreak}
If bacteria set in, they can destroy the bone in your tooth socket. This can cause sores on your gums.
If gums are inflamed, or infected, they will pull away from the teeth and jaw bone, and the situation can get even worse.
Written and revised by
Gerald Hurowitz, M.D.
Our doctors write and review articles for accuracy and keep them up to date.
health.am provides general information, not medical advice. Always consult a qualified health professional about your own health.
Explore health topics
More in this topic
Diabetes & Hormones →
NewsPregnancy Complications Still High for Women with Diabetes
Perinatal mortality and congenital anomalies in babies of women with type 1 or type 2 diabetes in England, Wales, and Northern Ireland: population based study BMJ Online First The risk of death and major birth defects…
18 June 2006
NewsSome diabetes complications unchanged in 30 years
No change has been seen in the last three decades in the occurrence of some serious complications of type 1 diabetes, such as heart disease and retina damage, new research from a US-based study suggests. "Doctors have…
10 May 2006
NewsBlacks, Hispanics prone to diabetes complications
Blacks and Hispanics with Diabetes are more likely than whites to require repeat hospitalization for complications related to their condition, according to a new report. "The data don't tell you whether the poor…
26 August 2005







