Illness anxiety disorder — known until recently as hypochondria — is a psychiatric condition characterised by excessive preoccupation with having or developing a serious illness, in the absence of significant somatic symptoms, or in cases where physical symptoms are present but clearly mild and do not warrant the level of concern they generate.
The term hypochondria carries historical baggage that has often led to dismissal rather than clinical engagement — a response that fails patients who are genuinely suffering. The formal DSM-5 designation, illness anxiety disorder, reflects a more accurate clinical understanding: this is a disorder of health-related fear and anxiety, not a personality failing.
The central feature is persistent, excessive, and difficult-to-control anxiety about having a serious medical condition — despite medical reassurance, normal test results, and the absence of objective evidence of disease. The preoccupation may focus on a specific feared illness — cancer, neurological disease, cardiac disease — or shift from one illness to another over time.
The care-seeking subtype involves repeated medical consultations, investigation requests, and reassurance-seeking — a pattern of returning to healthcare providers despite repeated negative findings.
The care-avoidant subtype involves the opposite — avoidance of medical settings and health-related information because of fear that something serious will be confirmed.
Both presentations involve significant distress and a disproportionate allocation of attention to health concerns.
The relationship to anxiety disorders is important. Illness anxiety disorder shares mechanisms with generalised anxiety, OCD, and panic disorder. The cognitive patterns — catastrophising, intolerance of uncertainty, hypervigilance to bodily sensations — are shared across these conditions.
The symptom picture includes persistent preoccupation with having or developing a serious illness; repeated medical consultations or avoidance of medical settings; excessive checking of the body for signs of illness; reassurance-seeking from healthcare providers, family, or online sources — with reassurance providing only brief relief before anxiety returns; difficulty tolerating uncertainty about health; hypervigilance to normal bodily sensations interpreted as signs of disease; significant distress; and impairment in work, relationships, and quality of life.
The relief that reassurance provides is a central maintaining factor. Each reassurance temporarily reduces anxiety — but also teaches the mind that checking and seeking reassurance are necessary. Over time, this cycle strengthens the disorder rather than resolving it.
Many patients spend years in medical settings — undergoing repeated investigations, receiving reassurance that provides only temporary relief, and being passed between specialists without a consistent clinical formulation. This pattern fails to address the underlying condition.
Psychiatric referral may feel threatening or invalidating to patients who experience their condition as primarily medical. A core clinical skill in working with illness anxiety is establishing the psychiatric frame in a way that is respectful of the patient's genuine suffering.
At IsraClinic, we take health anxiety seriously as a psychiatric condition — not as a personality trait, an attention-seeking behaviour, or an obstacle to medical care.
Assessment includes a comprehensive psychiatric interview exploring the nature, focus, history, and functional impact of health anxiety; assessment of co-occurring conditions — particularly generalised anxiety disorder, OCD, panic disorder, and depression; evaluation of current and past medical investigations; and careful differential diagnosis to ensure that genuine medical pathology has been appropriately excluded.
Cognitive Behavior Therapy (CBT) is the gold-standard psychological treatment. CBT addresses the specific cognitive patterns — catastrophising, hypervigilance, intolerance of uncertainty — and the behavioural patterns — reassurance-seeking, checking, avoidance — that maintain the disorder. The treatment directly targets the reassurance cycle. Conducted directly in English, Russian and Hebrew.
Acceptance and Commitment Therapy (ACT) is also well-suited — its focus on acceptance of uncertainty and values-based engagement with life addresses the existential dimension of health anxiety that CBT alone may not fully reach.
Pharmacotherapy with SSRIs has a meaningful evidence base and is frequently used in combination with psychotherapy in moderate-to-severe presentations. Medication is prescribed individually. Digital prescriptions are issued through the Yarpa system.
All treatment is delivered within the framework of the Psychoergonomic Method.
If concerns about illness are consuming significant time and mental energy, are not resolved by medical reassurance or normal test results, are affecting your relationships, work, or quality of life, or have created a pattern of repeated medical consultations without satisfactory resolution — psychiatric assessment is appropriate.
IsraClinic accepts patients for in-person consultation in Tel Aviv and online, in English, Russian and Hebrew. No referral is required.
Clinical Reviewer: Dr. Mark Zevin, MD — Senior Psychiatrist | IsraClinic | Last reviewed: 2026
Health anxiety is not imaginary — and it is not a character flaw. It is a recognised psychiatric condition that responds to the right treatment. Our team is available in English, Russian and Hebrew.