At the age of 6 to 8 months, the child notices the presence of the object (primary caregiver, mother, nurse), that is, he becomes aware of the presence of a supporter whose presence is encouragement. From the age of 7 months to 10 months, a fear naturally forms inside us, which is called the first fear of a child, which is the fear of the stranger, that is, the sense of insecurity caused by the evolutionary belief that the stranger may cause harm to the object.

From 9 months to 2 and a half years, we have normal separation anxiety and its continuation becomes separation anxiety disorder.

Examples of separation anxiety: He avoids going to kindergarten and school alone, and has a lot of attachment to objects and is afraid and feels insecure. Treatment is CBT, family education and medication.