Diseases and Conditions
Small vessel disease
Overview
Symptoms
Causes
Risk factors
Complications
Prevention
Diagnosis
Treatment
Lifestyle and home remedies
Alternative medicine
Preparing for an appointment
Causes
In coronary small vessel disease, the small arteries don't relax (dilate) as usual. As a result, the heart doesn't get enough oxygen-rich blood.
Experts think that the causes of small vessel disease are the same as the causes for diseases affecting the larger vessels of the heart, such as high blood pressure, high cholesterol, obesity and diabetes.