Topic Overview
Is this topic for you?
This topic is for adults
who have had type 2 diabetes for more than a few months. Before reading this
topic, you may want to read Type 2 Diabetes: Recently Diagnosed.
If this topic does not answer your questions, see:
If you are looking for information about
type 1 diabetes, see the topic
Type 1 Diabetes.
What is diabetes?
Type 2 diabetes is a lifelong
disease that develops when the
pancreas
cannot produce enough
insulin or when the body's tissues become
resistant to insulin. Insulin is a hormone that helps
the body’s cells use sugar (glucose) for energy. It also helps the body store
extra sugar in muscle, fat, and liver cells.
How can you manage diabetes?
You play a major
role in managing your diabetes. The most important thing is to control your
blood sugar. To do this:
- Eat a balanced diet. If you are overweight,
reduce your calorie intake to lose some weight. Losing as little as 10 to 20
pounds can improve your blood sugar levels. There are many ways to manage how
much and when you eat. Your doctor, a diabetes educator, or a dietitian can
help you find a plan that works for you.
- Exercise regularly. Try to do
moderate activity at least 2½ hours a week. One way to
do this is to be active 30 minutes a day, at least 5 days a week. Exercise
helps control your blood sugar by using glucose for energy during and after
activity. It also helps you stay at a healthy weight; lower
high cholesterol; raise
HDL, or "good," cholesterol; and lower
high blood pressure.
- Take your medicine
or insulin as directed, if prescribed by your doctor.
- Check your
blood sugar levels regularly, as advised by your doctor.
The goal is to keep your blood sugar in a target range.
You and your doctor may decide to keep your blood sugar as close to normal as
possible. This is called tight control. It’s the best way to reduce your chance
of having more problems from diabetes. These are called complications.
Taking care of your diabetes takes time and energy every day. But it will
help you feel better and may prevent, or at least delay, complications.
How can you deal with high and low blood sugar?
Even when you are careful and do all the right things, you can have
problems with high or low blood sugar. It is important to know what signs to
look for and what to do if this happens.
High blood sugar(hyperglycemia) usually happens over a few days or weeks.
Early symptoms include:
- Feeling very thirsty.
- Urinating
more often than usual.
- Feeling very hungry.
- Having
blurred vision.
People with diabetes can get high blood sugar for many
reasons, including not taking their diabetes medicines, eating more than usual
(especially sweets), not exercising, or being sick or under a lot of stress. If
you have high blood sugar, follow your treatment plan for lowering it. This may
mean taking missed doses of insulin or medicine. Call your doctor if you don't
know what to do. Treating high blood sugar is important. If it is left
untreated, it can lead to
hyperosmolar state, a dangerous condition.
You can get low blood sugar (hypoglycemia) if you
take insulin or a sulfonylurea pills for diabetes. It can happen suddenly.
Early symptoms include:
- Sweating.
- Feeling
weak.
- Feeling shaky.
- Feeling very hungry.
Symptoms of low blood sugar may vary over time. You may
also have these symptoms if you have a sudden large drop in blood sugar, even
though the level does not drop below the normal or near-normal range. Eat 1
tablespoon of sugar, ½ cup of orange juice, or another carbohydrate. Wait 15
minutes, and then check your blood sugar.
What are the complications of diabetes and their symptoms?
Over time, high blood sugar can cause complications
such as problems with your
eyes, heart, blood vessels, nerves, and kidneys
. High blood sugar also makes
you more likely to get serious illnesses or infections. Complications can lead
to blindness, kidney failure, removal of a limb (amputation),
heart attack,
stroke, and death. This is why it is so important to
keep your blood sugar in your target range.
If you had the disease
several years before you were diagnosed, you may already have a complication
from diabetes. Even if you don't have problems now, the longer you have
diabetes, the more likely you are to get one or more complications.
Be sure to tell your doctor if you notice any new symptoms, such as chest
pain, numbness, or a shooting pain in your hands or feet.
How can you prevent complications?
You may be able
to prevent, or at least delay, problems from diabetes by keeping your blood
sugar level as close to normal as you can. Treatment of high blood pressure or
high cholesterol can also help. If you smoke, quit. Smoking increases your risk
for complications.
If you are age 40 or older, talk to your doctor
about whether to take a low-dose aspirin each day to help prevent heart attack,
stroke, or other large blood vessel disease. People with diabetes are 2 to 4
times more likely than people who don't have diabetes to die from heart and
blood vessel diseases.1
See your doctor
every 3 to 6 months. During these visits, your doctor will review your
treatment and do tests and exams to see if your blood sugar is staying within
your target range and if you have any complications. It’s also important to
have regular checkups with your eye doctor and dentist. Diabetes can cause
vision and dental problems.
Will your treatment change over time?
The goal of
treatment is to always keep your blood sugar as close to your target range as
you can. At first, you may be able to treat diabetes with diet and exercise
alone. At some point, you may need to use insulin or take pills to control your
diabetes.
You always need to:
- Eat a balanced diet with enough calories to
help you stay at a healthy weight. If you are overweight, reduce your calorie
intake to lose some weight.
- Get regular exercise.
- Check your blood sugar
regularly during the day, as advised by your doctor.