Which endocrine disorder can mimic the symptoms of PMS?

Hyperthyroidism can mimic the symptoms of premenstrual syndrome (PMS) due to the overlap in symptoms such as mood changes, irritability, anxiety, and physical restlessness. In hyperthyroidism, the excessive levels of thyroid hormones lead to a state of hypermetabolism, which can cause anxiety, irritability, and mood swings—symptoms commonly associated with PMS.

Additionally, hyperthyroidism can lead to physical symptoms like breast tenderness and changes in menstrual patterns, which further contribute to the confusion with PMS. The increased metabolism can also cause weight loss, palpitations, and heat intolerance, adding to the overall symptomatic picture. Understanding this connection is essential in clinical practice, as recognizing hyperthyroidism as a potential underlying cause of these symptoms can lead to appropriate management and treatment for the patient.

In contrast, hypothyroidism tends to present with symptoms that are more aligned with fatigue and depression, Cushing's syndrome is characterized by features such as weight gain, moon facies, and hypertension, and diabetes mellitus typically presents with symptoms related to hyperglycemia, such as polyuria and polydipsia. These distinctions highlight why hyperthyroidism is the correct choice in this scenario.