what causes high sugar in the blood?
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Your blood sugar may rise if you: Skip or forget your insulin or oral glucose-lowering medicine. Eat too many grams of carbohydrates for the amount of insulin you took, or eat too many carbs in general. Have an infection.
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In this Article High blood sugar, or hyperglycemia, is a major concern, and can affect people with both type 1 and type 2 diabetes . There are two main kinds: Fasting hyperglycemia. This is blood sugar that's higher than 130 mg/dL (milligrams per deciliter) after not eating or drinking for at least 8 hours.
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Here are two other situations that may cause high fasting blood glucose levels: Dawn phenomenon happens as part of the body's normal circadian rhythm to wake up and get going. Hormones, such as growth hormone and cortisol, are released and raise glucose.
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Hyperglycemia (pronounced: hi-per-gly-SEE-me-uh) is the medical word for high blood sugar levels. High blood sugar levels happen when the body either can't make insulin (type 1 diabetes) or can't respond to insulin properly (type 2 diabetes).
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When you are sick, your body reacts by releasing hormones to fight infection. But these hormones raise blood sugar levels and at the same time make it more difficult for insulin to lower blood sugar. When you have diabetes, even a minor illness can lead to dangerously high blood sugar.
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Because your sugar is likely to be higher if you are ill, also ask your healthcare provider for a “sick day plan.” Very high blood sugar above 400 mg/dL (22.2 mmol/L) can be a medical emergency. In many cases it must be treated right away with IV fluids and insulin.
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The excess blood sugar in diabetes can wreak havoc on blood vessels all over the body and cause complications. It can severely damage the eyes, kidneys, nerves, and other body parts; cause sexual problems; and double the risk of heart attack and stroke.
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A high level of sugar in your blood can cause problems in many parts of your body, including your heart, kidneys, eyes, and brain. Over time, this can lead to kidney disease and kidney failure. There are two main types of diabetes. Type 1 diabetes generally begins when people are young.
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High blood sugar (hyperglycemia) If your blood sugar level is too high, you may experience: Increased thirst. Frequent urination. Fatigue.
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The most common cause of high levels of glucose in the urine is diabetes. Diabetes is a group of diseases that affects the way the body processes glucose. Normally, a hormone called insulincontrols the amount of glucose in the bloodstream.
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Over time, high blood sugar can damage blood vessels and the nerves that control your heart. People with diabetes are also more likely to have other conditions that raise the risk for heart disease: High blood pressure increases the force of blood through your arteries and can damage artery walls.
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Carbohydrates (carbs) are what cause blood sugar to rise. When you eat carbs, they are broken down into simple sugars. Those sugars then enter the bloodstream. As your blood sugar levels rise, your pancreas releases a hormone called insulin, which prompts your cells to absorb sugar from the blood.
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But if you're eating way too much sugar and your body stops responding properly to insulin, your pancreas starts pumping out even more insulin. Eventually, your overworked pancreas will break down and your blood sugar levels will rise, setting you up for type 2 diabetes and heart disease.
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Diabetes is the most common cause of elevated glucose levels. Your doctor will perform a simple blood test to confirm the diagnosis. In some cases, a high amount of glucose in urine can be due to pregnancy.
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Having too much sugar in the blood for long periods of time can cause serious health problems if it's not treated. Hyperglycemia can damage the vessels that supply blood to vital organs, which can increase the risk of heart disease and stroke, kidney disease, vision problems, and nerve problems.