What is Diabetes? Symptoms, Types, and Treatment.

Diabetes, medically known as diabetes mellitus, is a chronic metabolic disease characterized by persistently elevated levels of glucose (sugar) in the blood. Diabetes is not limited to high blood sugar alone; it is a serious internal medicine condition that can affect many systems, including cardiovascular health, kidney function, the nervous system, and the immune system. With early diagnosis and proper management, it can be kept under control.

What Is Diabetes?

Diabetes occurs when the body cannot produce enough insulin or cannot effectively use the insulin it produces. Insulin is a hormone secreted by the pancreas that allows glucose to enter cells and be converted into energy. When this mechanism is disrupted, glucose accumulates in the bloodstream, leading to hyperglycemia.

When left uncontrolled for a long time, diabetes can progress silently. Many patients may live for years without realizing they have the disease. For this reason, diabetes is one of the leading conditions in internal medicine that requires early diagnosis and regular follow-up.

Who Gets Diabetes?

Although diabetes can occur at any age, the risk is significantly higher in certain groups. Genetic predisposition and lifestyle factors are the main determinants of this risk.

Groups at higher risk for diabetes include:

• Individuals with a family history of diabetes

• Overweight or obese individuals

• People with a sedentary lifestyle

• Those with high blood pressure or high cholesterol

• Women with a history of gestational diabetes

• Individuals experiencing long-term stress and irregular eating habits

Regular internal medicine check-ups are especially important for these individuals.

What Are the Types of Diabetes?

Type 1 Diabetes

Type 1 diabetes usually develops in childhood or young adulthood. The immune system attacks the insulin-producing cells in the pancreas. As a result, the body cannot produce insulin, and lifelong insulin therapy is required.

Type 2 Diabetes

Type 2 diabetes is the most common form of diabetes. The body produces insulin, but the cells are resistant to its effects. It typically develops in adulthood and is closely associated with obesity. It can be managed with lifestyle changes and medication.

Gestational Diabetes

Gestational diabetes develops during pregnancy. It often resolves after delivery, but it increases the mother’s risk of developing Type 2 diabetes later in life. Therefore, postpartum follow-up is important.

Other Specific Types

Diabetes may also result from pancreatic diseases, certain genetic syndromes, or long-term use of corticosteroid medications.

What Are the Symptoms of Diabetes?

Diabetes symptoms vary depending on the level and duration of elevated blood sugar. Symptoms may be mild in the early stages but become more pronounced over time.

The most common symptoms include:

• Excessive thirst

• Frequent urination

• Dry mouth

• Fatigue and easy exhaustion

• Unexplained weight loss

• Blurred vision

• Slow-healing wounds

If these symptoms occur, an internal medicine specialist should be consulted.

How Does Infection-Related Blood Sugar Elevation Occur?

Infections cause an increase in stress hormones in the body. Hormones such as cortisol and adrenaline suppress the effect of insulin, leading to elevated blood sugar levels. This can result in temporary hyperglycemia in both people with diabetes and those without diabetes.

Blood sugar monitoring is especially important during febrile illnesses, urinary tract infections, and respiratory infections. Uncontrolled elevations may trigger the diagnosis of diabetes.

What Are the Symptoms of Diabetes in Children?

Diabetes in children most commonly presents as Type 1 diabetes, and symptoms may develop suddenly. Early recognition by families is vital.

Symptoms to watch for in children include:

• Bedwetting at night

• Excessive thirst

• Sudden weight loss

• Increased appetite

• Fatigue

• Acetone-like odor on the breath

These findings require urgent medical evaluation.

How Is Diabetes Diagnosed?

Diabetes is diagnosed through laboratory tests. An internal medicine specialist plans the appropriate tests based on the patient’s symptoms and risk factors.

The main tests used for diagnosis include:

• Fasting blood glucose

• Postprandial (post-meal) blood glucose

• HbA1c (average blood sugar over the past three months)

• Oral glucose tolerance test

Evaluating these tests together increases diagnostic accuracy.

What Complications Can Diabetes Cause?

Long-term uncontrolled diabetes can cause permanent damage to many organs. Therefore, diabetes should not be considered solely a blood sugar problem.

Major complications include:

• Cardiovascular diseases

• Kidney failure (diabetic nephropathy)

• Eye damage and vision loss

• Nerve damage (neuropathy)

• Foot ulcers and infections

Regular follow-up is essential to prevent these complications.

What Are the Treatment Methods for Diabetes?

Diabetes treatment is planned individually. The type of diabetes, the patient’s age, and accompanying conditions determine the treatment approach.

Treatment methods include:

• Lifestyle modifications

• Medical therapy (oral medications)

• Insulin therapy

• Regular blood sugar monitoring

Treatment success is directly related to patient adherence.

What Can Be Done to Prevent Diabetes?

A large proportion of Type 2 diabetes cases are preventable. Healthy lifestyle habits significantly reduce diabetes risk.

Preventive measures include:

• Balanced nutrition

• Regular physical activity

• Maintaining an ideal body weight

• Stress management

• Regular health check-ups

These measures are primary prevention strategies in internal medicine practice.

What Should Proper Nutrition Be Like in Diabetes?

Nutrition is one of the cornerstones of diabetes management. The goal is to prevent sudden spikes in blood sugar.

Key nutritional principles include:

• Avoiding simple sugars

• Choosing complex carbohydrates

• Consuming fiber-rich vegetables and whole grains

• Maintaining a balanced intake of protein and fat

• Not skipping meals

A nutrition plan should always be individualized.

Diabetes requires regular monitoring and proper medical guidance. Through Happ Health, you can consult internal medicine specialists via online doctor visits, plan your blood tests, and manage your diabetes follow-up from wherever you are.

Do not postpone your health; access expert support digitally for effective diabetes management.