Diabetes: Symptoms, Types, Diagnosis, Treatment, and Prevention
Diabetes mellitus, often simply called “diabetes”, is actually a collection of chronic health conditions that affects how the body regulates blood sugar (glucose). It occurs when the body does not produce enough insulin, does not use insulin effectively, or both. Diabetes is a common condition worldwide and can lead to serious health complications when blood sugar levels remain elevated over time.
Understanding the symptoms of diabetes, types of diabetes, diabetes diagnosis, treatment options, and prevention strategies can help you take steps toward better health.
Symptoms of Diabetes
Some symptoms of diabetes may include:
Increased thirst and dry mouth.
Frequent urination.
Fatigue or feeling unusually tired.
Blurred vision.
Unexplained weight loss.
Numbness or tingling in the feet or hands.
Frequent skin or vaginal yeast infections.
Increased hunger.
Most people, particularly those with type 2 diabetes, may have few or no noticeable symptoms. Regular health screenings can help identify elevated blood sugar before symptoms develop.
Types of Diabetes
Type 1 diabetes is an autoimmune condition in which the immune system attacks the insulin-producing beta cells in the pancreas. It mostly occurs in children and young adults. As a result, the body produces little or no insulin. People with type 1 diabetes need insulin therapy in order to survive. Islet cell transplants have been approved but are not common..
Type 2 diabetes occurs when the body does not use insulin effectively and, over time, may not produce enough insulin to maintain normal blood sugar levels. It is closely tied to obesity. Type 2 diabetes is the most common form of diabetes and is influenced by a combination of genetic, lifestyle, and environmental factors. There is an epidemic of type 2 diabetes in the US and other developed countries because of obesity rates.
Prediabetes occurs when blood sugar levels are higher than normal but are not yet in the diabetes range. Prediabetes is also usally relate to obesity and increases the risk of developing type 2 diabetes, but lifestyle changes can help reduce that risk.
Gestational diabetes develops during pregnancy when blood sugar levels become elevated. It often resolves after pregnancy, but having gestational diabetes increases the risk of developing type 2 diabetes later in life. People who have had gestational diabetes should discuss appropriate follow-up testing with their healthcare provider.
How Is Diabetes Diagnosed?
Healthcare professionals use several diabetes tests to diagnose diabetes and identify prediabetes. Common tests include the hemoglobin A1C test, fasting blood glucose test, and random blood glucose test. Usually, two abnormal tests, some time apart are needed to make a diagnosis.
Fasting Blood Glucose Test: A fasting blood glucose test measures blood sugar after you have not eaten for 12 hours.
Blood glucose results (mg/dL):
Normal: Less than 100 mg/dL
Prediabetes: 100–125 mg/dL
Diabetes: 126 mg/dL or higher
Random Blood Glucose Test: A random blood glucose test measures blood sugar at any time, regardless of when you last ate.
Diabetes: 200 mg/dL or higher when accompanied by symptoms of high blood sugar
A1C Test: The A1C test measures average blood sugar levels over approximately the previous three months. An A1C test generally does not require fasting.
A1C results:
Normal: Less than 5.7%
Prediabetes: 5.7%–6.4%
Diabetes: 6.5% or higher
How Is Diabetes Treated?
Diabetes treatment depends on the type of diabetes, blood sugar levels, overall health, and individual needs. Treatment may include lifestyle changes, blood sugar monitoring, medications, and insulin.
Healthy Lifestyle Changes: A balanced eating pattern and regular physical activity can help improve blood sugar management. Maintaining a healthy weight, will support diabetes management and reduce the risk of complications. Sometimes, early in the disease, losing weight will resolve the diabetes.
Blood Sugar Monitoring: Monitoring blood sugar with a glucose meter or continuous glucose monitor can help people with diabetes understand how food, physical activity, medications, and other factors affect their blood glucose levels.
Insulin: Insulin therapy is essential for people with type 1 diabetes and may also be prescribed for some people with type 2 diabetes or gestational diabetes. Insulin can be administered using a syringe or pen, or through an insulin pump.
Diabetes Medications: People with type 2 diabetes may be prescribed oral or injectable medications to help lower blood sugar. Different medications work in different ways, including improving insulin sensitivity, increasing insulin production, reducing glucose production, or affecting how the body handles glucose.
Can Diabetes Be Prevented?
Not all types of diabetes can be prevented. Type 1 diabetes currently cannot be prevented, but the risk of developing type 2 diabetes can often be greatly reduced, by maintaining an optimal weight and decreasing excessive carbohydrates in the diet.
Gestational diabetes
Is often related to excessive weight gain in pregnancy and can sometimes be prevented by careful eating during and before pregnancy.
Steps that may help lower the risk of type 2 diabetes include:
Eating a balanced, nutrient-rich diet, limiting sugars and starches.
Getting regular physical activity.
Maintaining a healthy weight.
Limiting excessive alcohol consumption.
Getting adequate sleep, generally around 7–9 hours for most adults.
Avoid ingsmoking or quitting smoking if you currently smoke.
If you have prediabetes, working with a healthcare professional on a prevention plan.
Living With Diabetes
Diabetes management is an ongoing process. Regular medical appointments, blood sugar monitoring when recommended, healthy lifestyle habits, and taking medications as prescribed can help keep blood glucose within an individualized target range. Managing diabetes effectively can also help reduce the risk of complications affecting the heart, kidneys, eyes, nerves, and other parts of the body.
If you are experiencing symptoms of diabetes, have risk factors for diabetes, or are concerned about your blood sugar, talk with a qualified healthcare professional about appropriate testing. Early detection and effective diabetes management can make an important difference in long-term health.
