Erectile dysfunction (ED) is the incapability to get or keep an erection firm enough to have intercourse. It is sometimes referred to as infertility, although this term is now used less often. Occasional ED is not uncommon. Many men go through it during times of distress. Frequent ED, however, can be a symptom of a health condition that requires treatment. It can also be a symptom of relationship or emotional difficulties that an expert may need to address. Erectile dysfunction can happen because of problems at any stage of the erection procedure. An erection is the outcome of increased blood flow into the penis. Blood flow is generally stimulated by intimate thoughts or direct contact with your penis. When a male is aroused, muscles in the penis relax. This results in increased blood flow through the penile arteries, filling two chambers inside the penis. As the chamber fills with blood, the penis grows hard. An erection ends when the muscles contract and the increased blood can flow out through the penile capillaries.



