Colds cause heart failure in the following cases: 1, colds are often caused by bacterial or viral infections, viruses are more common, these pathogenic microorganisms in addition to the respiratory tract, but also on the myocardium can be harmed, which can cause myocarditis, serious cases can lead to heart failure, arrhythmia, etc. 2, colds need to be treated with anti-infective cold medicines and cough, reduce phlegm, fever and other drugs, some of which also have a certain degree of damage to the heart. Some of these medicines also have a certain degree of damage to the heart. So although the cold is a small disease, but also should pay attention to, to pay more attention to rest, timely use of medication, so as not to cause damage to the heart, lungs or other systems.