A more thorough explanation:

Impotence, also known as impotency, refers to the physical inability to engage in sexual intercourse. This condition is typically associated with men and can be caused by a variety of factors, including medical conditions, psychological issues, or the use of certain medications.

In some cases, impotence can be so severe that it prevents a person from consummating a marriage. If this is the case, it may provide valid grounds for annulment of the marriage. Additionally, under some state laws in the United States, impotency can be used as a basis for divorce.

For example, if a man is unable to achieve or maintain an erection due to a medical condition, he may be considered impotent. This could prevent him from being able to consummate a marriage, which could lead to the marriage being annulled or dissolved.