Which patient symptom might suggest hypothyroidism?

Cold intolerance is a key symptom that suggests hypothyroidism. This condition occurs when the thyroid gland does not produce enough thyroid hormones, leading to a slowing of metabolic processes in the body. As a result, individuals with hypothyroidism often experience difficulty in maintaining body temperature and may feel excessively cold in environments where others are comfortable. This is because thyroid hormones play a significant role in regulating metabolism and generating heat within the body.

In contrast, increased heart rate and excessive sweating are more commonly associated with hyperthyroidism, where an overproduction of thyroid hormones leads to heightened metabolic activity. Weight loss, while it can be associated with various conditions, including hyperthyroidism, is not typically linked to hypothyroidism, which usually causes weight gain due to a decreased metabolic rate. Thus, cold intolerance strongly aligns with the pathophysiology of hypothyroidism, making it a significant symptom to consider when assessing a patient for this endocrine disorder.