Oral Stage:This is the first psychosexual developmental stage, from birth to around 1 year old, where infants derive pleasure from oral activities such as sucking and chewing.
Anal Stage:The anal stage occurs between the ages of 1 to 3 years old when children gain pleasure from bowel movements and control over their bodily functions.
Phallic Stage:The phallic stage occurs during ages 3 to 6 years old when children become aware of their gender identity and develop feelings towards their opposite-sex parent.