Chest tightness and penile erection are not necessarily related, chest tightness may be due to respiratory, pulmonary, heart disease, erectile dysfunction and psychological factors and organic lesions are related. Chest tightness refers to poor breathing or effort, such as bronchial stenosis, tracheal pressure, emphysema, bronchitis, asthma, coronary heart disease, pulmonary heart disease and so on can be caused. If chest tightness is caused by coronary heart disease, it may affect erectile function. Erectile dysfunction common psychological factors, such as husband and wife relationship disharmony, have sex life shadow, stay up late, life pressure, physical exhaustion and so on. Organic lesions include diabetes, hypertension, hyperlipidemia, coronary heart disease, neurological lesions, spinal cord lesions, surgical trauma, genital malformations and so on. Chest tightness or erectile dysfunction, please go to the hospital in time to find out the specific cause of the disease to choose the appropriate treatment program.