Thyroid Disorders: 8 Key Conditions, Symptoms, and Treatments
The thyroid (neck butterfly gland) regulates metabolism via T3/T4. Major disorders:
- Hypothyroidism: Low T3/T4 → fatigue, weight gain, cold intolerance, constipation, dry skin. Treatment: Levothyroxine.
- Hyperthyroidism: Excess T3/T4 → weight loss, tachycardia, anxiety, heat intolerance, insomnia. Treatment: Antithyroid drugs, radioiodine, surgery.
- Thyroiditis: Inflammation (autoimmune, viral, postpartum) → transient hyper- then hypothyroidism.
- Graves' Disease: Autoimmune TSH-receptor antibodies → hyperthyroidism + eye signs (exophthalmos), goiter.
- Hashimoto's Thyroiditis: Autoimmune destruction → progressive hypothyroidism.
- Goiter: Thyroid enlargement (iodine deficiency, autoimmunity, nodules).
- Thyroid Nodules: Common; 90–95% benign. Ultrasound + FNA for risk stratification.
- Thyroid Cancer: Papillary, follicular, medullary, anaplastic. Surgery ± radioiodine; excellent prognosis for differentiated types.
Any thyroid symptom warrants TSH/free T4 testing and endocrinology referral if abnormal.
Thyroid Disease - Related Articles
- Goiter vs. Thyroid Nodule: Differences, Causes, and Clinical Approach
- Radioactive Iodine-131 (¹³¹I) for Thyroid Disorders: Uses & Diagnostics
- Understanding TSH 3rd Generation Tests: Accuracy & Benefits
- Thyroid Medication and Jitters: Understanding the Connection
- Adam's Apple: Anatomy, Formation, and Significance
- Thyroid Surgery Risks: Complications, Rates & Surgeon Selection
- Thyroidectomy & Thyroid Levels: What to Expect After Surgery