The exact cause of premature ejaculation isn’t known. While it was once thought to be only psychological, doctors now know premature ejaculation is more complicated and involves a complex interaction of both psychological and biological factors.
Some doctors believe that early sexual experiences may establish a pattern that can be difficult to change later in life, such as:
Situations in which you may have hurried to reach climax in order to avoid being discovered
Guilty feelings that increase your tendency to rush through sexual encounters
Other factors that can play a role in causing premature ejaculation include:
Erectile dysfunction. Men who are anxious about obtaining or maintaining their erection during sexual intercourse may form a pattern of rushing to ejaculate, which can be difficult to change.
Anxiety. Many men with premature ejaculation also have problems with anxiety — either specifically about sexual performance or related to other issues.
Relationship problems. If you have had satisfying sexual relationships with other partners in which premature ejaculation happened infrequently or not at all, it’s likely that interpersonal issues between you and your current partner are contributing to the problem.
A number of biological factors may contribute to premature ejaculation, including:
Abnormal hormone levels
Abnormal levels of brain chemicals called neurotransmitters
Abnormal reflex activity of the ejaculatory system
Certain thyroid problems
Inflammation and infection of the prostate or urethra
Rarely, premature ejaculation is caused by:
Nervous system damage resulting from surgery or trauma
Withdrawal from certain medications used to treat mental health problems