But cardiomegaly is believed not be the disease itself, but just a sign of a possibly more severe problem. There are a lot of conditions which can give rise to cardiomegaly and two of which are heart valve disorders and high blood pressure. But other diseases, such as severe anemia, thyroid disorders may also be the possible culprits. Even the presence of excessive iron and the abnormal buildup of protein in the body can give rise to cardiomegaly.

Causes of Cardiomegaly:
Blood Pressure, the heart becomes enlarged due to high blood pressure and this is because your heart works tirelessly to transport blood to the vital organs of the body. Other diseases that affect the vital organs like the chest also causes this condition, thyroid may also cause cardiomegaly. Anemia is also a cause for enlarged heart because the red blood cells that are responsible for carrying oxygen to the tissues is reduced and not functioning well, the body will experience lack an irregular heartbeat and it is important that you visit the doctor for treatment. When the heart enlarges it becomes difficult for it to function properly and so it begins to thicken and hardens and cannot fully transport oxygen and blood to the vital organs which will suffer from this deprivation. Pulmonary hypertension is a condition whereby your heart works very hard to pump blood to the heart and lungs and that causes the right side of the heart to enlarge.