According to WebMd, the average male heart weighs 10 ounces. The average female heart weighs 8 ounces. The human heart is about the size of a fist.
An enlarged heart is a dangerous condition and can even lead to death. The Mayo Clinic identifies the symptoms of an enlarged heart as shortness of breath, swelling, or chest pain. People experiencing these symptoms are encouraged to see a doctor.
An enlarged heart is usually caused by an underlying condition, such as high blood pressure, heart disease, or fluid around the heart. The Mayo Clinic identifies oral medications, procedures and surgery as potential treatments for this condition.