Which symptoms best describe classic diabetes presentation?

• A. Polyuria, polydipsia, polyphagia
• B. Weight gain, fatigue, cold intolerance
• C. Night sweats, tremor, palpitations
• D. Hair loss, brittle nails, fatigue

Answer: (A)

High blood glucose in diabetes leads to osmotic diuresis, so you urinate more and become dehydrated, which triggers increased thirst. At the same time, if insulin is deficient or ineffective, glucose stays in the bloodstream and cells don’t get the fuel they need, prompting increased hunger. This combination of frequent urination, extreme thirst, and heightened appetite is the classic presentation of diabetes.

Other symptom clusters reflect different conditions: weight gain with fatigue and cold intolerance suggests hypothyroidism; night sweats, tremor, and palpitations point to hyperthyroidism; hair loss, brittle nails, and fatigue can occur with various issues but don’t define the diabetes pattern.