Personality is an abstract concept that encompasses human behavior, cognition, emotion, and psychological functioning. It is relatively stable but has the capacity for change (
1). Personality disorders result from the complex interaction between individual predispositions, early childhood experiences, and stressful conditions (
2). Unpleasant childhood experiences, such as violence, abuse, and neglect, play a significant role in psychological traumas (
3), and exposure to dysfunctional childhood environments increases the likelihood of psychological disorders (
4). These disorders often co-occur with other mental health issues, complicate treatment, and increase the risk of suicide and premature mortality (
5). Personality disorders usually begin in adolescence or early adulthood, and multiple interviews are required for diagnosis (
6). Approximately 1 in 10 individuals have a personality disorder (
7). A study conducted in 2019 indicated that, across 46 studies from 21 countries on six continents, the global combined prevalence of personality disorders was 7.8% (
8).
The specific personality disorder discussed here is paranoid personality disorder (PPD). The term “paranoia” comes from the Greek para nous, meaning “beyond reason” and was initially used to refer to madness (
9). Paranoid personality disorder, according to the criteria of the American Psychiatric Association, involves a pervasive distrust and suspicion of others. Key features include a belief that others are exploiting or deceiving them, doubts about the loyalty and trustworthiness of others, reluctance to share personal information, a tendency to interpret benign comments or events in a negative light, holding grudges, and reacting with defensiveness or aggression to perceived criticism or unwarranted attacks. The prevalence of this disorder is estimated to range from 2.3% to 4.4% in various references (
6).
The family, as an influential system, plays a significant role in the development of psychological disorders. A study found that individuals with bipolar disorder who experienced fear, neglect, and repeated negative interactions had significantly poorer mental health (
10). Children of parents with mental illnesses may face social, emotional, and academic challenges, and due to unawareness of their parent's condition, they may experience confusion, anxiety, fear, and guilt (
11,
12). Parenting styles that are overly strict and controlling can often harm the child's mental health, reducing their self-esteem and increasing feelings of insecurity and inferiority (
13). The PPD can contribute to marital instability and reduced parental affection, which may increase the risk of depression in adulthood (
14). In families with paranoid individuals, interaction patterns such as living with rigid rules, distrust, and anxiety contribute to the development of paranoid structures (
15). Any form of inappropriate parenting, such as corporal punishment, may lead to unintended harmful effects on children's mental health (
16).
The father's role in a child's mental health is as important as that of the mother or primary caregiver. A father’s social and emotional traits, from early childhood through adolescence, significantly influence a child’s development. A father's impact may be indirect, such as through influencing the mother's behaviors or the relationship with their partner. In some cases, the father can also directly affect the health and behavior of the child (
17). A study exploring how childhood memories of parental acceptance or rejection affect psychological adjustment in adulthood. These findings confirm the connection between parental rejection in childhood, sensitivity to interpersonal rejection, and psychological maladjustment in adults (
18). Toxic and abusive father-child relationships can impact the lives of individuals with bipolar disorder. These individuals have reported experiences of living in neglect, fear, rejection, and reflecting negative paternal patterns (
10).
Given these factors, parental interactions play a crucial role in adolescent development, the formation of their identity, self-esteem, and social skills. A mental disorder in one of the parents affects all family members. Existing studies on the parent-child relationship indicate that qualitative research has not specifically focused on the lived experience of male adolescents with paranoid fathers. Most studies have centered around the mother-child relationship. Therefore, researching this topic is essential for understanding causality, preventing psychological traumas, and providing effective treatment.