Cardiology is the medical specialty concerned with the heart, blood vessels and conditions affecting the cardiovascular system.
What cardiologists do
Cardiologists assess symptoms, review risk factors and use tests to investigate cardiovascular concerns. Depending on training and setting, their work may include prevention, long-term disease management, imaging or procedures. Cardiac surgery is a separate surgical specialty, although teams often work together.
Common areas of care
The field includes coronary artery disease, heart rhythm problems, valve conditions, high blood pressure and heart failure. Tests may include an electrocardiogram, heart imaging, exercise testing or blood work, selected according to the clinical question.
When assessment matters
Chest pressure, fainting or severe breathing difficulty can require urgent care. General education cannot diagnose the cause. Heart attack and heart failure explains two distinct conditions, and our heart-failure overview covers a condition that requires authoritative medical review.
Different roles within heart care
Cardiology includes several areas of practice. A general cardiologist may coordinate assessment and long-term management. Specialists in electrophysiology focus on heart rhythm disorders, while interventional cardiologists perform catheter-based procedures. Imaging specialists interpret detailed scans, and heart-failure teams manage complex cases over time. The correct referral depends on symptoms and test findings. Preventive care also matters: blood pressure, tobacco exposure, activity, cholesterol and other factors may be discussed according to the individual. These distinctions explain why a single online description cannot determine which test, specialist or treatment a reader needs.
