Diabetes occurs when the body is unable to properly use glucose for energy. There are different types of diabetes including type 1, type 2, gestational, and prediabetes. Risk factors include family history, age, weight, and lifestyle habits. Symptoms can include increased thirst, fatigue, blurred vision, and frequent urination. Without proper treatment, diabetes can lead to serious health complications affecting the heart, kidneys, eyes, nerves, and other organs. Treatment depends on the type of diabetes and may involve lifestyle changes, medications, and insulin.