The concept of perfectionism explains the tendency to demand a much higher or even perfect performance from oneself or others than the situation requires. People with a perfectionist attitude have a blaming inner voice that makes it difficult for them to tolerate the shortcomings in themselves and those around them. In fact, although at first glance it may seem like a situation that brings success to the person, lack of tolerance for mistakes leads to feelings of inadequacy and guilt. In addition, since it is difficult to cope with these emotions, avoidance and procrastination behaviors are observed. When the underlying reasons for perfectionism are examined, the importance of relationships established with parents in the first years of life is understood. Acceptance and approval are one of the basic emotional needs that must be met during childhood. An individual who is constantly criticized and inadequately appreciated in childhood may continue to feel inadequate when he or she reaches adulthood. The high and unrealistic standards of the people who raised him have become the person’s own standards as they have been internalized over time. He thinks that he can only meet his need for acceptance and approval, which he could not meet in his childhood, when he is perfect. If the result does not meet the person’s expectations, the effort and effort he puts in throughout the process means nothing to him. Since the work he does is never “the best” for him, he exhibits an overly critical attitude towards himself and may feel inadequate. An individual who has no tolerance for mistakes and sees himself as inadequate may feel emotionally stressed and tense. At the same time, he may experience problems that negatively affect his physical health, such as headaches, stomach problems and insomnia. In addition, a person can set the high standards he sets for himself on other people he is in a relationship with and expect them to meet these standards. Since an overly critical attitude is displayed towards people who cannot meet their expectations, interpersonal relationships may deteriorate. Perfectionism, which negatively affects both a person’s individual life and social relationships, may be accompanied by psychological problems such as depression, anxiety disorders and difficulty in anger control. For this reason, it is important to get support from an expert in order to cope with perfectionism and the underlying feelings of inadequacy.