What Is Pteridophobia

  • Nayla Nader Masters Public Health - Health Management, Public Health, American University of Beirut


Specific phobia, a common type of anxiety disorder, is defined as an extreme, irrational, and persistent fear of specific objects, settings or situations that are usually safe. According to the National Institute of Mental Health, 9.1% of the adult US population suffer from specific phobias, whereas in the UK, 10 million people are affected by phobias, with women being much more affected than men.1 

Pteridophobia, a rare form of specific phobia, is defined as the intense and unreasonable fear of ferns. Like any other type of phobia, pteridophobia varies in severity. For some people, seeing, thinking or even talking about ferns can trigger severe symptoms of fear and anxiety. For others, this condition does not affect their daily lives and, therefore, does not need treatment. If you believe that you or a loved one might be dealing with pteridophobia, read on to find out more about its causes, symptoms, diagnosis and treatment strategies.  

Exploring the roots of fern fear

The cause behind pteridophobia cannot be allocated to a single issue but rather a combination of factors, including psychological as well as genetic.2

Psychological origins

Like many other specific phobias, the fear of ferns finds its roots in many psychological factors, such as past traumatic experiences and learned behaviours:

  • Traumatic Experiences: you may develop pteridophobia because you experienced a negative or traumatic event with ferns in the past.2 For example, a childhood incident involving an unfortunate interaction with ferns could have a lasting association between that plant and fear.  
  • Learned Behaviors: your fear of ferns can be learnt and picked up from your surroundings. Suppose you grew up around someone in your family who is extremely afraid of ferns or expresses discomfort around them. In that case, you may subconsciously start mimicking this behaviour and adopt similar reactions, and over time, this will contribute to and reinforce your fear of ferns.  


The genes that some people inherit from their parents increase their risk of having anxiety, specific phobias or other mental health conditions. Studies suggest that some people are genetically predisposed to anxiety disorders and phobias. In other words, you are more likely to have phobias if a family member has phobias.1

Symptoms and manifestations

Like any other specific phobia, the most common clinical manifestation of pteridophobia is anxiety. Symptoms of which include:

  • Accelerated Heart Rate
  • Palpitations
  • Difficulty breathing
  • Trembling
  • Sweating
  • Nausea
  • Irritability
  • Dizziness
  • Panic attack in severe cases - a short-lived episode of intense anxiety

Avoidance is a particularity of individuals dealing with specific phobias. Someone with pteridophobia may actively avoid ferns or any place they might encounter one. This behaviour can greatly affect one's daily life, from choosing specific routes to avoid fern-rich areas to avoiding social gatherings or events where ferns might be present.  

Diagnosing pteridophobia

The diagnosis of pteridophobia, like other specific phobias, requires the clinician to conduct a thorough psychiatric assessment and obtain a detailed medical history evaluating the symptoms and their time course.3

Conditions causing similar symptoms

The first step is to make sure you do not have a condition causing your phobia. Your physician will, therefore, start by ruling out disorders that can cause phobias or have similar symptoms as pteridophobia:3

Diagnostic criteria

Your doctor will then ask you questions about your fear of ferns. You will be diagnosed with pedophobia if you meet the following criteria set by the Diagnostic and Statistical Manual of Mental Health Illnesses (DSM-5)

  • You experience an intense fear of ferns, persisting for at least 6 months  
  • Exposure to ferns almost always triggers feelings of fear and anxiety 
  • You try to avoid derns
  • Your fear of ferns, anxiety and fern avoidance negatively impact your daily life and functioning. 
  • You might even realise  that your fear of ferns is exaggerated and out of proportion.


Only a fraction of people with pteridophobia seek medical treatment, possibly because they greatly rely on active avoidance of ferns to control their fear, stress, anxiety and the negative implications it has on their lives. 1

  • Exposure therapy: is the treatment of choice for specific phobias, including pteridophobia. It involves the repeated and gradual exposure to ferns. Your therapist might start by prompting you to think and talk about ferns or looking at pictures of ferns and finally get close to a fern.

The purpose is to teach you how to control your fear and anxiety and improve your quality of life. Your physician decides the duration of the session and the number of sessions you might need.1

  • Cognitive Behavioral Therapy (CBT): studies have proven the efficacy of CBT in the management of specific phobias. This method involves reshaping your response and negative behaviours associated with the fear of ferns. You will be taught healthier methods to cope with your fear, such as relaxation and breathing techniques. This treatment method aims to help you realise that ferns are safe.3
  • Medication: is not considered the treatment of choice and therefore is not commonly used to manage specific phobias.1 When prescribed, medications are used to manage anxiety symptoms (rapid heartbeat and trembling) but not for the treatment of pteridophobia. Suppose you anticipate exposure to ferns and you exhibit severe symptoms or even a panic attack. In that case, your doctor might prescribe a low dose of benzodiazepine (such as lorazepam) or beta-blocker (such as propranolol) to be taken before your contact with ferns.


What is the clinical course of pteridophobia?

Like most specific phobias, pteridophobia can be persistent if left untreated. For some individuals, their fear of ferns can become a lifelong challenge, affecting the quality of their daily lives and even limiting their daily activities. Studies have also shown that lifetime prevalence is much higher in women than in males.1 

Can I live with pteridophobia?

The prognosis of untreated pteridophobia depends on the severity of your symptoms.  Suppose you suffer from mild symptoms and find it easy to avoid being exposed to ferns, you can lead a normal life. However, if your job involves dealing with plants, including ferns, or you live in the countryside, it will be much more difficult to avoid ferns, and treatment is advisable. If you suffer from severe symptoms or frequent panic attacks when dealing with ferns, it is recommended you seek treatment.1


Pteridophobia is a rare type of specific phobia characterised by the irrational and persistent fear of ferns. Symptoms can range from mild to severe. In the latter, even thinking about ferns can trigger symptoms. For some individuals, their fear is so intense that ferns might trigger a panic attack. Many factors play a role in the development of specific phobias, particularly pteridophobia: genetic susceptibility, traumatic experiences, and learned behaviours. If anxiety and phobic disorders run in the family, you are more likely to inherit and experience them. A past traumatic experience related to ferns may teach you to associate this plant with strong negative emotions such as fear and anxiety. Pteridophobia could also be a learned behaviour, meaning you might have picked up the unreasonable fear of ferns when growing up around a parent who also experienced phobia around ferns. 

Symptoms might vary in severity from one person to another, with avoidance behaviours and anxiety being the most common manifestations of pteridophobia. Individuals experiencing fear of ferns mainly exhibit nausea, dizziness, shortness of breath, chest tightness and rapid heartbeat.

While it is normal to fear or experience discomfort around certain things, a phobia, however, goes beyond regular fear and can sometimes greatly impact your daily life. Diagnosing pteridophobia requires evidence of unreasonable and persistent fear of ferns that greatly impacts the quality of one’s life, with the individual in question making considerable efforts to avoid ferns altogether. Finally, managing pteridophobia requires a multifaceted approach tailored to the needs of each person and the severity of their symptoms. Interventions aimed at reducing symptoms and reshaping negative behaviours associated with ferns include exposure therapy, CBT and sometimes medications.


  1. Eaton WW, Bienvenu OJ, Miloyan B. Specific phobias. Lancet Psychiatry [Internet]. 2018 Aug [cited 2024 Jan 13];5(8):678–86. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7233312/
  2. Garcia R. Neurobiology of fear and specific phobias. Learn Mem [Internet]. 2017 Sep [cited 2024 Jan 13];24(9):462–71. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5580526/
  3. Samra CK, Abdijadid S. Specific phobia. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2023 [cited 2024 Jan 14]. Available from: http://www.ncbi.nlm.nih.gov/books/NBK499923/
This content is purely informational and isn’t medical guidance. It shouldn’t replace professional medical counsel. Always consult your physician regarding treatment risks and benefits. See our editorial standards for more details.

Get our health newsletter

Get daily health and wellness advice from our medical team.
Your privacy is important to us. Any information you provide to this website may be placed by us on our servers. If you do not agree do not provide the information.

Nayla Nader

Registered Pharmacist, Masters of Public Health

Nayla is a pharmacist and public health specialist with a passion for education, community work, and medical writing. She has several years of experience in academia, teaching pharmacology to nursing students, conducting data analysis and report writing. Whether in the classroom, the community or on paper, Nayla is committed to simplifying complex health concepts and translating them into information accessible to all.

my.klarity.health presents all health information in line with our terms and conditions. It is essential to understand that the medical information available on our platform is not intended to substitute the relationship between a patient and their physician or doctor, as well as any medical guidance they offer. Always consult with a healthcare professional before making any decisions based on the information found on our website.
Klarity is a citizen-centric health data management platform that enables citizens to securely access, control and share their own health data. Klarity Health Library aims to provide clear and evidence-based health and wellness related informative articles. 
Klarity / Managed Self Ltd
Alum House
5 Alum Chine Road
Westbourne Bournemouth BH4 8DT
VAT Number: 362 5758 74
Company Number: 10696687

Phone Number:

 +44 20 3239 9818