Which stage is characterized by a focus on pleasure in the mouth according to Freud?

The oral stage is the first stage in Sigmund Freud's theory of psychosexual development, occurring from birth to approximately 18 months. During this stage, an infant's primary source of interaction and pleasure comes from the mouth. Activities such as sucking, biting, and chewing are vital for the infant's and caregiver's bonding process. This stage also plays a crucial role in the development of trust and comfort, as the infant relies on the caregiver for nourishment and oral stimulation.

Freud suggested that the experiences and challenges faced during the oral stage could influence an individual's personality in adulthood. For example, fixation at this stage might manifest in behaviors such as smoking, nail-biting, or overeating, reflecting an unresolved need for oral gratification. Understanding the oral stage helps social workers and mental health professionals recognize patterns in clients' behaviors and how early experiences shape later personality traits and psychological issues.