Erectile dysfunctions:
Erectile dysfunction is the inability to get an erection to have sexual interaction. Sometimes it is also referred to as impotence. Occasional erectile dysfunction is common. During the stressful times, any man can experience the issue. But consistent erectile dysfunction is a sign of a health condition that requires treatment. Erectile dysfunction may also be a sign of relationships or emotional problems which need to be addressed by a professional.
Causes:
Causes of erectile dysfunction may include smoking, alcohol, drug, relationship issues, anxiety, stress, and age, being overweight, damage due to surgery or cancer, hypertension, diabetes, cardiovascular disease. Erectile dysfunction can be caused by both physical and emotional disorders. It can be caused by any one of these factors. So it is important to check with your doctor so that they can find out the cause and treat the underlying medical condition.
Initial symptoms:
You may have ED if you consistently have:

• Reduced interest in sex
• Difficulty maintaining an erection during sexual activities
• Trouble getting an erection

If any of these symptoms lasted for more than 2 months you need to seek a doctor.
Signs of erectile dysfunction:
Frequent symptoms are difficulty achieving an adequate erection, inability to sustain an erection, inability to have an erection. Rare symptoms are low levels of testosterone, anorgasmia i.e. Failure to become aroused even after sufficient stimulation, trauma to the pelvic area, dysfunction in pelvic floor muscle, reduced area, dysfunction in pelvic floor muscles, reduced sex drive or libido, inability to ejaculate, delayed ejaculation, premature ejaculation. Other common signs are mentioned below.
No sex with your partner: if you are struggling to get an erection with your partner but having no problem during solo masturbation, this can be a sign of erectile dysfunction. This erectile dysfunction is associated with stress.
Unsatisfactory sexual intercourse: sometimes you may be able to get an erection with your partner but if it is continuously too brief or too soft for sex. It still means you have erectile dysfunction.
Night time activity: If your penis is functioning during your sleep it too indicates psychological related erectile dysfunction.
Diabetes: there is a number of health problems which can trigger erectile dysfunction but men with diabetes often have other chronic health problems which put them at higher risk to have erectile dysfunction. Diabetic patients can have problems 10-15years earlier than other people.
Excessive use of Viagra: taking unnecessary Viagra to enhance your performance exceeding normal levels may also put you at the risk to have erectile dysfunction. It can cause dependency problems and also increase the risk of psychological related erectile dysfunction.
Dental problems: according to study, men with erectile dysfunction also diagnosed with the chronic periodontal disease. 80% of men with these issues had dental problems. Poor dental hygiene can allow bad bacteria to enter the blood flow impairing the blood flow to the penis.
Complications:

• Inability to get your partner pregnant
• Relationship problems
• Low self-esteem or embarrassment
• Anxiety or stress
• Unsatisfied sex life