Health condition
DOCK8 deficiency awareness
DOCK8 deficiency is a rare combined immunodeficiency once grouped with hyper-IgE syndrome - severe eczema, crippling viral skin infections and allergies with high IgE - but its course is more dangerous, and stem cell transplantation is curative.
Why trust this guide
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Editorial team
Written by our editorial team from the UK sources listed on each page.
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Sourced from guidance
Checked against current NHS and UK specialist society guidance at the time of review.
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Current for 2026
Reviewed on 2026-09-27 with the next review scheduled for 2027-09-27.
Key facts
The essentials at a glance.
The symptoms to recognise, when to seek help, which specialist to see, and what treatment usually involves.
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The distinguishing feature: severe, persistent viral skin infections - warts (HPV), molluscum, herpes simplex - on top of eczema, abscesses and high IgE
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Severe allergies including food allergy are prominent, unlike classic STAT3 disease
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The stakes differ: DOCK8 deficiency carries real risks of early cancers (especially virus-driven skin and lymphoid cancers) and severe infections
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It is autosomal recessive - parental consanguinity or an affected sibling raises suspicion
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Haematopoietic stem cell transplantation is curative and outcomes are best when done before complications - which makes early genetic diagnosis vital
Understanding the condition
What it is and what happens next.
What causes it, how it is diagnosed, and the treatment routes available in the UK.
What it is and how it feels
Two conditions long shared the hyper-IgE label until genetics divided them, and the division matters clinically: where STAT3 disease keeps its distinctive skeleton and teeth, DOCK8 deficiency announces itself through the skin's losing battle with viruses - warts that carpet hands, molluscum that never clears, cold sores that scar - alongside ferocious eczema and food allergies. Behind the visible disease runs the serious arithmetic: untreated, many patients develop life-threatening infections, vasculopathy or malignancy in the first decades of life.
Diagnosis and treatment routes
That arithmetic is exactly why awareness pays: DOCK8 sequencing is available on immunodeficiency gene panels, and a confirmed diagnosis changes the goal from managing symptoms to cure, since stem cell transplantation corrects the defect and is increasingly performed early with good results. Pre-transplant care bundles antiviral and antibacterial prophylaxis, immunoglobulin where indicated and skin cancer surveillance. A young person with treatment-resistant viral skin disease plus severe atopy deserves immunology referral without delay; private appointments are typically available within about two weeks.
Seeing a specialist
Who to see, and how quickly you can be seen.
The specialist for this condition is usually a consultant clinical immunologist. Your GP can refer you on the NHS, or you can arrange a private consultation directly.
A quiet reminder
This guide is for information, not medical advice.
Your GP knows your history and can tell you which parts apply to you. If in doubt, see them - and seek urgent care for any of the emergency symptoms described above.
Frequently asked
Common questions about DOCK8 deficiency awareness.
Quick, plain-English answers to what people ask us most.
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What is DOCK8 deficiency?
DOCK8 deficiency is a rare combined immunodeficiency, once grouped with hyper-IgE syndrome, causing severe eczema, susceptibility to serious viral infections, and other immune dysfunction due to an inherited gene mutation.
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What causes DOCK8 deficiency?
It's caused by inherited mutations in the DOCK8 gene, which is important for the normal function of various immune cells, leading to combined defects affecting both antibody and cell-mediated immune responses.
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What are the symptoms of DOCK8 deficiency?
Symptoms typically include severe, often widespread eczema, recurrent and sometimes serious viral skin and other infections, food allergies, and increased susceptibility to certain other infections, usually presenting in early childhood.
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Is DOCK8 deficiency dangerous?
Yes, it's a serious immunodeficiency that can lead to significant, sometimes life-threatening infections and other complications if not properly managed, which is why early diagnosis and specialist immunology care matter considerably.
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Is DOCK8 deficiency hereditary?
Yes, it's inherited in an autosomal recessive pattern, meaning both parents carry a faulty gene copy. Genetic counselling and testing are recommended for affected families.
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How is DOCK8 deficiency treated?
Treatment can include immunoglobulin replacement therapy, antimicrobial prophylaxis to prevent infections, and management of skin and allergic symptoms, with haematopoietic stem cell transplantation offering a potentially curative option for eligible patients.
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Can DOCK8 deficiency be cured?
Haematopoietic stem cell transplantation can potentially cure the underlying immune defect for suitable candidates, representing a significant treatment option, though this carries its own risks and is considered carefully on an individual basis.
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How is DOCK8 deficiency diagnosed?
Diagnosis typically involves genetic testing once the characteristic combination of severe eczema, viral susceptibility, and other immune features raises clinical suspicion, often after other, more common causes of severe eczema have been considered.
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DOCK8 deficiency vs hyper-IgE syndrome - what's the relationship?
DOCK8 deficiency was historically grouped with hyper-IgE syndromes due to overlapping features, but genetic testing has clarified that it's a distinct condition with its own specific gene, inheritance pattern, and treatment considerations, including transplant eligibility.
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When should I seek specialist assessment for possible DOCK8 deficiency?
Seek immunology assessment for a child with unusually severe eczema alongside recurrent significant infections, given the importance of early diagnosis for accessing potentially curative treatment. A private immunology consultation is often available within about two weeks.