Tricuspid regurgitation of the heart does not usually cause dizziness. The tricuspid valve is a valve of the heart, the valve between the right atrium and the right ventricle. When the tricuspid valve is closed insufficiently, the blood will flow back from the right ventricle into the right atrium, a condition known as tricuspid regurgitation. Most patients with milder conditions have no obvious symptoms. If the condition is more serious, the heart function will be affected, and common symptoms are chest tightness and shortness of breath, fatigue, edema and other symptoms. There are many causes of dizziness in the human body, including cervical spondylosis, anemia, hypotension, hypertension, insufficient cerebral blood supply, vertigo, etc. There are also some drug poisoning or heavy metal poisoning that can cause dizziness. If dizziness often occurs, and dizziness lasts for a long time, patients need to go to the hospital to do the relevant examination, clear causes to do targeted treatment.