The general term clotting factor impairment refers to a wide range of medical problems associated with blood clotting disorder. Mostly, these are inherited genetic disorders that impair the body’s ability to make blood clots, including hemophilia A, hemophilia B, Von Willebrand Disorder, and Rare Bleeding Disorders. Hemophilia is a sexually transmitted disease that happens due to a gene mutation; hemophilia A occurs due to not enough clotting factor VIII and hemophilia B occurs due to not enough clotting factor IX (
1). Hemophilia A affects about 1 in 5000 - 10000 while hemophilia B affects about 1 in 40000 males at birth (
2). The difference between hemophilia A and B is not clinically determinable (
3). For many patients with hemophilia, the stages of development and adolescence are hard to manage. At this stage, the patients with hemophilia need others, especially the family, due to the illness and special care requirements (
4). Family as a fundamental support system is essential and its role could not be ignored (
5). Over the past two decades, the number of families caring for patients with chronic diseases has grown (
6). A family member’s disease can affect all family members. As a result, diseases may pose bad psychological effects on families and affect their mental health, in addition to mental and physical limitations and problems to the patients (
7). Since hereditary factors are responsible for hemophilia, child’s parents feel a kind of guilt and this causes stress in the family.
Perceived stress is the response of the body to a change that requires adaptation or physical, mental, and emotional response (
8). Akbari dehkordi et al. (2011) found that one of the causes of stress in the family is the birth of the sick child. Parental stress can lead to poor performance of the family system and, in general, improper parenting (
9). The results of a study showed that having a sick child has a significant relationship with family performance and families with sick children are more exposed to stress than other families are (
10). Stress not only affects the families but also makes the sick person more vulnerable to various conditions and diseases (
11). Vulnerable people to stress or discomfort show distress and difficulty in performing their duties (
12,
13). Many studies have shown that cognitive failure or cognitive vulnerability is highly associated with personality traits, depression, anxiety, and stress (
11).
Cognitive failure (cognitive vulnerability) is an individual’s failure to complete tasks that they are naturally able to complete. This concept refers to the fact that a person normally has the ability to do the job, but interfering with another task or a disrupting agent causes the person to act awkwardly and with difficulty (
11). Cognitive failure is an influential variable in causing mental disorders in people (
14), and due to the interference with daily activities, it can cause serious damage (
15). Brantley & Joens (1989) showed that individuals, who assessed mild and moderate stressors as highly stressful, were more vulnerable to them, and they had little ability to deal with them (
16). Garber & Hilsman (1992) expressed that when individuals face stressful situations, their negative cognitive style increases the tendency of vulnerability to stress and decreases self - efficacy (
17). As families’ stress affects cognitive failure, it also affects patients’ mental health.
Mental health has different dimensions. The World Health Organization (WHO) defines mental health as a level of physical and psychological well - being or an absence of mental illness. The WHO further states that the well - being of an individual is encompassed in the realization of their abilities, coping with normal stresses of life, productive work, and contribution to their community (
18). Ha et al. (2011) reported that when parents with a disabled child receive more family support, the negative effects of children’s disability on their mental health reduce (
19). The findings of the Kwan study (2004) in Germany showed that social support and family performance are effective in the mental health of patients (
20). The results of Jewell et al. (2009) showed that family’s psychological education in controlling stress and concern is effective in improving mental health (
21). Fristad (2003) believed that family’s psychological education could increase the mental health endurance in patients (
22). Moreover, the results of Pahlavanzadeh et al. (2009) and Lotfi Kashani et al. (2006) studies showed that psychological education of families increases the general health and decreases the anxiety of affected children (
23,
24).
Since the patients with hemophilia are predominantly part of the young population of the country, the role of the family is very important in caring for them (
25). In addition, given that the family core (father and mother) is often responsible for meeting daily needs of the patient, the above - mentioned factors lead to increased mental stress and tension in the family (
26). Therefore, it is necessary to develop health and social policies in order to properly plan for the prevention, diagnosis, and treatment of the problems in the various areas of the life of these patients and provide necessary services and support; regardless of considering all aspects of the disease, especially the mental health, we cannot provide peace for these patients and their families (
27). The lack of research on the role of perceived stress in the families of patients with hemophilia in predicting cognitive failure and mental health in patients with hemophilia indicates the necessity and importance of the implementation of this research.