s disease), diseases which predispose to priapism (sickle cell anemia, myeloma, leukosis, thrombocytopenia), diseases manifested in bleedings, aggravation of the stomach and duodenal ulcers, hereditary pigmental rhinitis, heart failure, unstable angina, history of recent (6 month) heart attacks, stroke, severe arrhythmia,
high blood pressure (more than 170/100 mm HG) and low
blood pressure (less than 90/50 mm HG)
Also, Sexual activity represents a certain risk in the cardiovascular diseases.