Which condition is characterized by high blood sugar levels?

Diabetes Mellitus is the condition characterized by high blood sugar levels. This metabolic disorder occurs when the body either does not produce enough insulin, which is necessary for glucose to enter cells, or when the cells become resistant to insulin, leading to elevated glucose levels in the bloodstream. As a result, individuals with diabetes can experience a range of symptoms and complications, including increased thirst, frequent urination, fatigue, and long-term issues such as cardiovascular disease, nerve damage, and kidney problems if left unmanaged.

Hypertension refers to high blood pressure, which is a separate condition that does not directly relate to blood sugar levels. Hyperlipidemia involves high levels of lipids (fats) in the blood and is also distinct from blood sugar regulation. Hypoglycemia is a condition where blood sugar levels are too low, which is the opposite of the high blood sugar characteristic of diabetes. Thus, the distinction and definition of diabetes make it the correct answer for this question regarding high blood sugar levels.