Impotence, also known as Erectile Dysfunction (ED), is a condition in which a man has difficulty achieving or maintaining an erection sufficient for satisfactory sexual activity. It can occur occasionally due to stress or fatigue, but when it becomes frequent or persistent, it may indicate an underlying health problem.

Erectile dysfunction can be caused by various factors such as poor blood flow, hormonal imbalance, nerve damage, certain medications, psychological stress, or chronic medical conditions like diabetes and heart disease. With proper diagnosis and treatment, most men can successfully manage this condition and improve their quality of life.