Premature ejaculation (PE) is a common sexual dysfunction where a man ejaculates sooner during sexual activity than he or his partner would like. It often happens within a minute or two of penetration or even before it. PE can be classified as lifelong (primary) or acquired (secondary), depending on whether it occurs from the onset of sexual activity or develops later. Causes can include psychological factors like anxiety, stress, and relationship issues, or biological factors such as hormonal imbalances and nerve sensitivity. Treatment options include behavioral techniques, counseling, medications, and topical anesthetics to help delay ejaculation and improve control.