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Diabetes Mellitus

Diabetes mellitus is chronic high blood sugar that, untreated, damages kidneys, eyes, nerves, and blood vessels. Affects 38 million Americans.

Diabetes Mellitus is a chronic disease that affects the way your body processes glucose (blood sugar).

Diabetes can be classified into three types:

  • Type 1 Diabetes: A condition in which the immune system attacks the insulin-producing pancreatic cells. It is usually diagnosed in childhood or young adulthood, and requires insulin therapy for life.
  • Type 2 Diabetes: The most common type of diabetes, in which the body is resistant to insulin and/or does not produce enough. It is often related to lifestyle factors like diet, weight, and physical activity.
  • Gestational Diabetes: A temporary form of diabetes which occurs during pregnancy. It increases the risk for Type 2 diabetes in later life.

Common Symptoms of Diabetes

Some people have diabetes without even realizing it. Early detection of diabetes symptoms can be a game changer:

  • Frequent urination, particularly at night
  • Extreme thirst and hunger
  • Unexpected weight loss
  • Fatigue and irritability
  • Blurred vision
  • Slow-healing wounds
  • Numbness or tingling in the fingers and toes
  • Infections of the gums, skin, or vaginal area

It's vital to visit a doctor if you or someone close to you experiences any of these symptoms.

What Causes Diabetes?

Type 2 diabetes can be influenced by lifestyle and genetic factors:

  • Obesity: Increased insulin resistance due to excess weight, particularly around the abdomen.
  • Sedentary Lifestyle: An inactive lifestyle can reduce the body's ability to regulate blood glucose.
  • Poor Diet: Consuming processed foods, sugary beverages, and unhealthy fats increases the risk.
  • Family History: A close relative who has diabetes increases your chances of getting it.
  • Age: As you age, the risk of Type 2 diabetes increases.
  • High Blood Pressure and Cholesterol: These conditions have a close relationship with insulin resistance and diabetes.

Managing and Treating Diabetes

Lifestyle Changes

  • Healthy Eating: Focus on whole foods, healthy fats, and carbohydrates rich in fiber. Avoid sugary and processed foods.
  • Exercise Regularly: Regular physical activity improves insulin sensitivity and helps regulate blood glucose levels.
  • Weight Control: Maintaining an ideal weight can reduce the risk of complications.
  • Blood Sugar Monitoring: Tracking blood sugar levels can help you adjust your diet, exercise, and medications as necessary.

Insulin Therapy and Medications

  • Oral Medications: Metformin, for Type 2 diabetes patients, helps regulate blood sugar.
  • Insulin Therapy: Essential for Type 1 diabetes, and sometimes advanced Type 2 diabetes.
  • Other Medicines: Certain drugs can help the body produce more insulin, or use it better.

Avoiding Complications

Diabetes can increase the risk of developing other health issues, including heart disease, kidney problems, nerve damage, and vision loss. A healthy lifestyle and regular checkups can help to prevent complications.

Signs & symptoms

Signs and symptoms to watch for

  • - Often no symptoms early
  • especially in type 2 diabetes - Increased thirst - Frequent urination - Increased hunger - Unexplained weight loss - Fatigue - Blurred vision - Slow-healing sores or cuts - Frequent infections - Tingling or numbness in the hands or feet

When to see a specialist

Should you see a specialist?

Schedule an evaluation if you have any classic diabetes symptoms, are over 45 with risk factors, are overweight with one or more risk factors, have an A1C in the pre-diabetes range, or were recently diagnosed and need help establishing a management plan.

Your physician

Your internal medicine at Remix Medical.

Every clinician at Remix Medical is board-certified and owns the practice — so the physician in your exam room is the one making decisions about your care.

  • Kaveh Samani, MD

    Internal Medicine Physician

    Montrose — Upper Kirby · Northwest Houston — Jones Road

    Board certifiedAccepting newBook
Specialty
Internal Medicine
ICD-10 code
E11.9
Associated anatomy
Pancreas, beta cells, blood vessels, kidneys, eyes, peripheral nerves

Also known as: Diabetes, DM, Type 1 Diabetes, Type 2 Diabetes, Hyperglycemia, T2DM, T1DM

This page is for general education and is not a substitute for medical advice from your physician. Contact a Remix Medical clinician about your specific situation.

Updated May 9, 2026. Medically reviewed by Kaveh Samani, MD.

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