Introduction 

Nosophobia is a condition, typically under mental health conditions, that causes an irrational fear of contracting a disease. Some of the diseases that may be primary concerns in nomophobia include HIV, sexually transmitted infections, and tuberculosis. It can cause feelings of distress or even physical symptoms such as sweating. Although nosophobia is not listed in the DSM-5, the Diagnostic and Statistical Manual of Mental Disorders, it is still an important health anxiety disorder that has similar symptoms to those in the DSM-5, such as anxiety disorder (formerly known as hypochondriasis). 

The primary psychological causes of this condition include anxiety, trauma, and misinformation, and it is important to understand these causes individually. This article will attempt to unpack how underlying anxiety, the spread of misinformation, and past traumatic experiences can play a significant role in the diagnosis of nosophobia. 

Anxiety as a foundation of nosophobia 

People with anxiety tend to have similar symptoms to those with nosophobia. Understanding anxiety-related symptoms and how they interlink with nosophobia is a great start in diagnosing this condition. 

Generalised anxiety disorder (GAD) and nosophobia

Generalised anxiety disorder is a condition that causes one to feel constantly anxious about various matters. The main symptoms of worry and stress make day-to-day living difficult.¹ People with GAD are more likely to worry about conditions like finances and health.² The constant worry about health, coupled with other catastrophising symptoms of GAD such as restlessness, can cause one to interpret this as the diagnosis of a much more sinister disease. It is important to monitor individuals with GAD to ensure that it does not serve as the building block for nosophobia.

Hypervigilance and monitoring of physical symptoms

Hypervigilance can be one of the consequences of anxiety. Hypervigilance is a state of increased awareness and sensitivity to one's environment.³ This includes being overly aware of one’s own body functions. Constantly being aware of your bodily functions, like your heart beating and breathing rate, can become detrimental. If there is any slight deviation in these functions, which is normal, an anxious individual could interpret this as a sign of illness. 

Panic attacks

Anxiety surrounding health and illness can cause panic attacks. Panic attacks are sudden waves of fear in the absence of any danger. Symptoms of panic attacks include chest tightness, tingling, and increased heart rate. These symptoms are often mistaken for a heart attack.⁴ These symptoms might reinforce their worries regarding their health, which will prompt frequent visits to healthcare professionals. Even if they are reassured that their symptoms are due to a psychosocial cause, the cycle of anxiety-inducing panic attacks continues and can lead to illness anxiety disorders like nosophobia. 

Trauma and nosophobia 

Trauma can be defined as an experience that causes intense reactions, whether physical or psychological.⁵ Trauma is an important factor in many psychological conditions, including nosophobia. 

Personal medical trauma

One's past medical history plays an important role in their health beliefs. Positive experiences might cause one to have a healthy outlook on their health, while negative, traumatic ones would have the opposite effect. Studies have shown that adverse childhood experiences increase one's likelihood of developing health anxiety in adulthood.⁶ Adverse experiences could include something as minor as an allergy or as life-threatening as surgery. 

Vicarious trauma (witnessing others)

Witnessing someone suffer from a health condition can be quite challenging. Studies have shown that people, particularly mental health providers, can suffer negative effects due to the impact of vicarious trauma.⁷ Losing a loved one to an illness can cause significant trauma and is associated with the symptoms of anxiety.⁸ This anxiety can specifically trigger worries about one's own health. 

Post-traumatic stress symptoms and health fears

One of the most well-known effects of trauma is post-traumatic stress disorder (PTSD). Although it is seen as only affecting war veterans, it can affect anyone who has gone through significant trauma, like hospital admission, witnessing natural disasters, or experiencing adverse childhood experiences. Prominent features of this condition include memories of the trauma and obsessive thoughts. If the cause of the post-traumatic stress is due to health-related trauma, it can easily lead to health anxiety. 

Misinformation and media influence 

Research published in the Bulletin of the World Health Organisation in 2022 found that the range of health misinformation was between 0.2% and 28.8% on social media.⁹ These numbers are concerning, as they show the far-reaching impact of misinformation. 

The role of the internet and self-diagnosis

The internet has been one of mankind's greatest inventions; however, with this, people have begun to rely on self-diagnosis over traditional doctor-patient consultations. It has become easy for one to input their symptoms and get a diagnosis without having to see a medical professional. Although this can sometimes be helpful, most time these diagnoses are not accurate and can lead to panic and anxiety. Studies show that the accuracy of online symptom checkers can range from 19% to 37%.¹⁰

News and social media are amplifying health fears

Social media and news outlets are the biggest drivers of misinformation. This was evidenced during the COVID-19 pandemic. According to the World Health Organisation, misinformation on social media was one of the causes of vaccine hesitancy. This could lead to public health crises and the public refusing treatment.¹¹ Apart from leading to vaccine hesitancy, misinformation amplified people's fears about the pandemic, which was still relatively new. 

Confirmation-seeking and misinformation

Armed with unlikely diagnoses and misinformation from social media, it is easy to come to an untrue conclusion regarding your health. It is important to recognise how easy it is to fall victim to the sometimes untrue claims on the internet and begin to develop symptoms of health anxiety.

Interplay between causes

In reading this article, it might seem difficult to understand how all these causes could lead to one developing nosophobia. However, all these causes go hand in hand in causing health anxiety.

Imagine you wake up one day with pain in your calf, and you decide to go online to figure out what could be wrong. You might stumble across a page that tells you that one of the symptoms of a blood clot is calf pain. This could intensify the anxiety that you have regarding your health due to past hospitalisations. That article, coupled with your symptoms and anxiety, could lead you into a panic. This intensifies nosophobia, convincing you that you have a serious medical condition. This cycle will continue every time you have any physical symptoms and will worsen your health anxiety.

Without proper treatment, whether psychological or medical, the effects of anxiety, trauma, and misinformation will continue to play an extremely important role in how a diagnosis of nosophobia affects your life. 

Conclusion

Nosophobia is a condition that causes one to have an irrational fear of contracting a particular disease. The main psychological causes of this condition include anxiety and trauma. Misinformation also plays a significant role in the development of this mental health condition. People who suffer from anxiety, such as generalised anxiety disorder, are more prone to have health anxiety-related conditions like nosophobia. Trauma, whether experienced yourself or second-hand, can cause one to have obsessive-compulsive thoughts, which can easily turn into health anxiety. Health misinformation is on the rise, especially due to the easy accessibility of online self-diagnostic tools. Social media also plays a role in amplifying people's health fears and can lead to increased anxiety. These three factors go hand in hand with continuing the cycle of health anxiety and worsening the symptoms of nosophobia. It is important to seek professional help when you feel overwhelmed with anxious thoughts regarding your health. Additionally, adequate education is necessary for this condition to equip the general public to pick up on the early warning signs. 

FAQs

How do I know whether information is health misinformation?

It is important to verify information with reputable health sources, like the World Health Organisation.

Is nosophobia common?

Nosophobia is not a common condition.

How can I cure my nosophobia?

If you think you have nosophobia, it is important to seek medical attention.