Can hyperthyroidism cause tinnitus and dizziness?

Whether hyperthyroidism causes tinnitus and dizziness depends on the severity of the condition. The specific analysis is as follows:

1. No

Hyperthyroidism is a common endocrine disorder, typically a syndrome caused by excessive secretion of thyroid hormones. In mild cases of hyperthyroidism, if patients do not exhibit symptoms involving the nervous system, they may not experience tinnitus or dizziness.

2. Yes

However, in severe cases of hyperthyroidism, increased systemic excitability may occur, making muscles and nerves more sensitive. This can lead to symptoms such as tinnitus, dizziness, emotional agitation, and fatigue. In such cases, medication under medical supervision—such as methimazole or propylthiouracil—is necessary. Once thyroid hormone levels return to the normal range, tinnitus and dizziness caused by hyperthyroidism usually resolve spontaneously.

If, after treatment improves hyperthyroidism and thyroid hormone levels have normalized, tinnitus and dizziness persist or continue to worsen, timely further evaluation at a hospital is required to determine an appropriate treatment plan.