Chronic untreated hypertension increases afterload on the heart, leading to left ventricular hypertrophy and eventually heart failure. It can also cause stroke, chronic kidney disease, and retinopathy.
- Hypoglycemia is unrelated.
- Hyperthyroidism is an endocrine disorder, not a direct hypertension complication.
- Osteoarthritis is a degenerative joint disease unrelated to blood pressure.