Erectile dysfunction (ED) may be due to multiple causes. Common causes include: Physical factors: Issues with nerve damage Blood flow Hormonal problems Heart disease or high blood pressure, obesity, diabetes, could be another reason for ED by affecting the flow of blood to the penis or harming nerves. Psychological factors: Anxiety Stress Depression Lifestyle Choices: Unhealthy Eating Smoking cigarettes excessive drinking alcohol, drug abuse sedentary lifestyle Medicines: Certain medications that are prescribed, such as those to treat depression, high blood pressure anxiety, and prostate problems, may have adverse effects on the function of erectile. Underlying health conditions: hormonal imbalances neurological disorders Age: As men get older and get older, they can suffer a decline in sexual performance because of variations in the levels of hormones and blood circulation. In the end erectile dysfunction is effected by a mix of psychological, physical and lifestyle factors. To treat erectile dysfunction various medicines are available like Sildenafil Tablet, Vardenafil Tablets. consult your doctor before taking any of these medication. Click this to know more about which drug is best for erectile dysfunction.