Valve disease is a medical condition that occurs when the heart valve doesn't function properly. This can result in restriction of blood flow or leakage, both of which can cause severe health problems. There are different types of valve diseases, including aortic stenosis, mitral stenosis, and pulmonary stenosis. Synonyms for valve disease include valvular heart disease, heart valve disorders, heart valve disease, heart valve problems, and cardiovascular valve disease. Regardless of which terminology is used, this condition requires prompt medical attention to prevent complications such as heart failure, stroke, and even death. Patients with valve disease are often treated with medications and may require surgery to correct the problem.