A complex relationship between a person’s emotional experience and their physical response to pain. Catastrophizing pain is defined as an exaggerated cognitive and emotional pattern of pain perception characterized by persistent negative thinking, overestimation of the intensity of pain, and excessive fear of its consequences, resulting in increased psychological and physical suffering. This pattern of pain reactions affects not only the immediate sensation of discomfort, but also the physiological and psychological functions of the body, increasing the likelihood of the appearance or exacerbation of psychosomatic symptoms. When a person experiences catastrophic pain, the autonomic nervous and endocrine system responses are overactivated, increasing the secretion of stress hormones such as cortisol and adrenaline, leading to high blood pressure, muscle tension, and gastrointestinal and cardiovascular disorders. These chronic reactions can develop into persistent physical symptoms such as chronic headaches, back pain, irritable bowel syndrome, and cardiovascular disease, demonstrating a direct link between catastrophizing pain and psychosomatic disorders. Moreover, catastrophizing pain affects mental health and reduces psychological resilience by increasing levels of anxiety, depression, and frustration, while reducing psychological resilience, psychological flexibility, and self-efficacy. This makes people more vulnerable to cumulative stress and increases the severity of psychosomatic symptoms. This pattern also limits the ability to use effective coping strategies such as relaxation techniques, mindfulness, or cognitive reappraisal, thereby exacerbating the negative effects of pain on both the body and mind.