Graves' Disease - Symptoms and Signs

Symptoms and Signs

The symptoms and signs of Graves' disease virtually all result from the direct and indirect effects of hyperthyroidism, with main exceptions being Graves' ophthalmopathy, goitre, and pretibial myxedema (which are caused by the autoimmune processes of the disease). Symptoms of the resultant hyperthyroidism are mainly insomnia, hand tremor, hyperactivity, hair loss, excessive sweating, heat intolerance, weight loss despite increased appetite, diarrhea, frequent defecation, palpitations, muscle weakness, and skin warmth and moistness. Further signs that may be seen on physical examination are most commonly a diffusely enlarged (usually symmetric), nontender thyroid, lid lag, excessive lacrimation due to Graves' ophthalmopathy, arrhythmias of the heart, such as sinus tachycardia, atrial fibrillation and premature ventricular contractions, and hypertension. Thyrotoxic patients may experience behavioral and personality changes, such as psychosis, agitation, and depression. In milder hyperthyroidism, patients will rather experience less overt manifestations, such as anxiety, restlessness, irritability, and emotional lability.