What happens if your blood sugar stays high for too long?

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.

How long can blood sugars be high?

Call your doctor or nurse right away if you have any of these signs. Your blood sugars stay high even when following your meal plan. Your blood sugars stay high for 2 to 3 days. This may be a sign of illness or infection.

At what blood sugar level does damage occur?

First, the numbers. “Post-meal blood sugars of 140 mg/dl [milligrams per deciliter] and higher, and fasting blood sugars over 100 mg/dl [can] cause permanent organ damage and cause diabetes to progress,” Ruhl writes.

What does it feel like when your blood sugar is too high?

Hyperglycemia (high blood glucose) means there is too much sugar in the blood because the body lacks enough insulin. Associated with diabetes, hyperglycemia can cause vomiting, excessive hunger and thirst, rapid heartbeat, vision problems and other symptoms.

When should a diabetic go to the hospital for high blood sugar?

For adults, if you start to feel drowsy or disoriented or if your blood sugar continues to rise, for example, above 20.0 mmol/L, call 911 or other emergency services immediately. It's best to have someone with you if your blood sugar is this elevated so that the person can call for you.

Type 2 Diabetes: How can high glucose levels harm your body?

At what sugar level is diabetic coma?

A diabetic coma could happen when your blood sugar gets too high -- 600 milligrams per deciliter (mg/dL) or more -- causing you to become very dehydrated. It usually affects people with type 2 diabetes that isn't well-controlled. It's common among those who are elderly, chronically ill, and disabled.

What should I do if my blood sugar is over 400?

According to the University of Michigan, blood sugar levels of 300 mg/dL or more can be dangerous. They recommend calling a doctor if you have two readings in a row of 300 or more. Call your doctor if you're worried about any symptoms of high blood sugar. They can offer advice and reassurance.

Can drinking a lot of water lower your blood sugar?

Drinking water regularly may rehydrate the blood, lower blood sugar levels, and reduce diabetes risk ( 20 , 21 ).

How long does it take diabetes to cause nerve damage?

Significant nerve problems (clinical neuropathy) can develop within the first 10 years after a diabetes diagnosis. The risk of developing neuropathy increases the longer you have diabetes. About half of people with diabetes have some form of neuropathy.

What happens if you can't get your blood sugar down?

What if it goes untreated? Hyperglycemia can be a serious problem if you don't treat it, so it's important to treat as soon as you detect it. If you fail to treat hyperglycemia, a condition called ketoacidosis (diabetic coma) could occur. Ketoacidosis develops when your body doesn't have enough insulin.

What should I do if my blood sugar is over 500?

How long does it take to go into a diabetic coma?

For people with type 2, a diabetic coma may be caused by either hypoglycemia or very high blood sugar, called diabetic hyperosmolar syndrome. That's when your body tries to get rid of extra sugar by passing it into your urine. Over days or weeks, this can cause life-threatening dehydration and, eventually, a coma.

What are the 5 main symptoms of diabetic neuropathy?

What is end stage neuropathy?

Stage 5: Complete Loss of Feeling

This is the final stage of neuropathy, and it is where you've lost any and all feeling in your lower legs and feet. You do not feel any pain, just intense numbness. This is because there are no nerves that are able to send signals to your brain.

What do diabetic legs look like?

Also known as “shin spots,” the hallmark of diabetic dermopathy is light brown, scaly patches of skin, often occurring on the shins. These patches may be oval or circular. They're caused by damage to the small blood vessels that supply the tissues with nutrition and oxygen.

How long does it take for blood sugar to go down?

Your blood sugar level rises immediately after eating a meal or snack (Figure 2). In a healthy person, insulin then starts working, and the blood sugar level returns to the pre-meal level 2 hours after eating. In untreated diabetes patients, the blood sugar level does not return to the pre-meal level of its own accord.

Does urinating lower blood sugar?

When the kidneys aren't up to the job, much of that glucose is eliminated from the body through your urine. This process also flushes out valuable hydrating fluids from your body, often leaving people with diabetes peeing frequently as well as dehydrated.

How do you flush sugar out of your body?

Should I go to the hospital if my blood sugar is over 300?

In general, a blood sugar reading of more than 180 mg/dL or any reading above your target range is too high. A blood sugar reading of 300 mg/dL or more can be dangerous. If you have 2 readings in a row of 300 or more, call your doctor.

What are the symptoms of a diabetic coma?

What are the symptoms of diabetic shock?

What is the highest blood sugar level ever recorded?

WESTMINSTER, Ohio (AP) - A northwest Ohio man has been recognized by the Guinness Book of Records for a rather dubious world record. Michael Stuber's blood sugar reached a whopping 2,460 -- and he survived. A reading of 126 or below is considered normal. At 500, coma becomes a risk.

Can diabetes cause sudden death?

We conclude that diabetes mellitus does appear to be associated with an increased risk of sudden cardiac death. Although this increased risk is relatively modest, given the large number of diabetic patients worldwide, the absolute number of sudden cardiac deaths attributable to diabetes mellitus remains significant.

Can blood sugar reach 1000?

Blood glucose levels may become very high — greater than 1,000 mg/dL (55.6 mmol/L). Because insulin is present but not working properly, the body can't use either glucose or fat for energy. Glucose is then spilled into the urine, causing increased urination.

Why does diabetes affect your feet?

How does diabetes cause foot problems? Foot problems are common in people with diabetes. They can happen over time when high blood sugar damages the nerves and blood vessels in the feet. The nerve damage, called diabetic neuropathy, can cause numbness, tingling, pain, or a loss of feeling in your feet.