Whether or not sexual intercourse is possible in heart failure is related to the severity of the condition, treatment and other factors. If in the acute onset of heart failure, and not get better treatment, personal physical condition is not good, sexual behavior may increase the burden on the heart, aggravate the situation of heart failure, generally do not recommend sexual behavior; such as after treatment, heart failure symptoms reduce, the condition is stable, can be appropriate sexual behavior. Heart failure is a clinical syndrome caused by cardiac dysfunction, with the development of the disease may appear dyspnea, shortness of breath, fatigue, coughing, hemoptysis and other uncomfortable symptoms. Sexual behavior can trigger sexual arousal, potentially aggravating the burden on the heart and worsening the degree of heart failure. Individuals with this condition should be evaluated by a medical professional before considering resuming a normal sex life. Heart failure that has progressed to an advanced stage may reduce renal blood flow, triggering renal impairment and impacting on sexuality. Sexual intercourse should be avoided at this stage to prevent the degree of heart failure from worsening and causing danger. If heart failure exists, you should go to the hospital as soon as possible for examination, clear diagnosis, and active treatment under the guidance of physicians.