Hypothyroidism

  • Underactive thyroid: Occurs when the thyroid gland doesn’t produce enough thyroid hormone.
  • Symptoms: May not be noticeable in the early stages.
  • Health problems: Untreated hypothyroidism can lead to other health issues, such as high cholesterol and heart problems.
  • Diagnosis: Blood tests are used to diagnose hypothyroidism.
  • Treatment: Thyroid hormone replacement therapy is generally effective and safe once the correct dosage is determined.

Symptoms

  • Tiredness
  • Increased sensitivity to cold
  • Constipation
  • Dry skin
  • Weight gain
  • Puffy face
  • Hoarse voice
  • Coarse hair and skin
  • Muscle weakness
  • Muscle aches, tenderness, and stiffness
  • Heavier or irregular menstrual cycles
  • Thinning hair
  • Slowed heart rate (bradycardia)
  • Depression
  • Memory problems
  • Infants:
  • Feeding problems
  • Poor growth and weight gain
  • Jaundice
  • Constipation
  • Poor muscle tone
  • Dry skin
  • Hoarse crying
  • Enlarged tongue
  • Umbilical hernia
  • Children and Teens:
  • Similar symptoms to adults
  • Poor growth
  • Delayed development of permanent teeth
  • Delayed puberty
  • Poor mental development

Causes

  • Autoimmune diseases: Hashimoto’s disease is the most common cause, where the immune system attacks the thyroid gland.
  • Thyroid surgery: Removal of all or part of the thyroid gland can lead to hypothyroidism.
  • Radiation therapy: Radiation treatment to the head and neck can damage the thyroid gland.
  • Thyroiditis: Inflammation of the thyroid gland can disrupt hormone production.
  • Medications: Certain medications, such as lithium, can interfere with thyroid hormone production.
  • Congenital hypothyroidism: Some babies are born with an underactive or absent thyroid gland.
  • Pituitary disorders: Problems with the pituitary gland can affect thyroid hormone production.
  • Pregnancy: Hypothyroidism can develop during or after pregnancy.
  • Iodine deficiency: Insufficient iodine intake can lead to hypothyroidism.

Risk Factors

  • Gender: Women are more likely to develop hypothyroidism than men.
  • Family history: A family history of thyroid disease increases the risk.
  • Autoimmune diseases: Having an autoimmune disease, such as Type 1 diabetes or celiac disease, can increase the risk.
  • Previous treatment: People who have received treatment for hyperthyroidism, such as radioactive iodine or surgery, are at a higher risk.
  • Radiation exposure: Radiation therapy to the neck or upper chest can damage the thyroid gland.
  • Thyroid surgery: Having had thyroid surgery can increase the risk of hypothyroidism.

Complications

  • Goiter: An enlarged thyroid gland can cause swallowing or breathing difficulties.
  • Heart problems: Increased risk of heart disease and heart failure due to elevated LDL cholesterol levels.
  • Peripheral neuropathy: Damage to the peripheral nerves can lead to pain, numbness, tingling, and loss of sensation in the extremities.
  • Infertility: Can interfere with ovulation and fertility.
  • Birth defects: Untreated hypothyroidism during pregnancy can increase the risk of birth defects.
  • Myxedema coma: A life-threatening condition characterized by extreme cold intolerance, drowsiness, and unconsciousness.

Prevention

  • Avoid processed foods: Chemicals in processed foods can interfere with thyroid hormone production.
  • Limit soy: Soy can also disrupt hormone production.
  • Quit smoking: Smoking can damage the thyroid gland and increase the risk of thyroid disorders.
  • Reduce stress: Stress can contribute to various health problems, including thyroid disease.
  • Eat healthy fats: Healthy fats, such as olive oil, can support thyroid gland function.
  • Exercise regularly: Physical activity can help regulate hormone levels.

When to see a doctor

  • Unexplained fatigue: If you are feeling tired for no apparent reason, it could be a sign of hypothyroidism.
  • Other symptoms: If you are experiencing any of the other symptoms of hypothyroidism, such as weight gain, cold intolerance, constipation, or dry skin, it’s important to consult with a healthcare professional.
  • Monitoring thyroid hormone medication: If you are taking thyroid hormone medication, follow your healthcare provider’s advice on how often you need medical appointments. Regular check-ups are important to ensure your medication dosage is correct and your condition is well-managed.

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