What did Freud suggest happens when sexual desire is not expressed?

Freud suggested that when sexual desire is not expressed, it can lead to the development of anxiety. In his theories, Freud emphasized the importance of sexual drives in human psychology and believed that repressed or unfulfilled desires could manifest as psychological tension. This tension arises because individuals are unable to satisfy their innate urges, which Freud considered a significant part of the human experience. Anxiety, in this context, serves as a psychological response to the internal conflict created by unexpressed desires, leading to feelings of unease and discomfort. This concept is intertwined with his ideas about the id, ego, and superego, where the id represents unfulfilled desires, and the ego must navigate the moral and social implications of expressing those desires.