Health condition
NF1 in adults: surveillance
Adults with NF1 need proportionate, targeted surveillance: annual blood pressure and symptom review for everyone, early breast screening for women, and urgent imaging when a plexiform neurofibroma changes - not blanket scanning.
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.
Which gene and test confirm it, who should be tested in the family, and which specialist to see.
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Annual: blood pressure, skin and symptom review, visual symptom check - lifelong
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Women with NF1: breast cancer risk is increased before 50, so screening starts at 40 (earlier by agreement), often with MRI in the highest-risk years
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Red flags needing prompt imaging: growing, painful or hardening plexiform neurofibromas (risk of MPNST), new neurological deficits, unexplained hypertension
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Whole-body MRI is used selectively - at transition to adult care or when symptoms demand it - rather than annually
Understanding the condition
What it is and what happens next.
What causes it, how it is confirmed, and the testing and specialist routes available in the UK.
What it is and how it presents
The art of NF1 follow-up is distinguishing the many findings that need nothing from the few that need speed. Cutaneous neurofibromas, however numerous, do not become malignant; deep plexiform lesions can, at a low but real lifetime rate, and the warning signs - persistent pain, rapid enlargement, texture change, new weakness - justify urgent MRI and often PET assessment at a sarcoma-experienced centre. Hypertension is the other quiet flag, occasionally announcing phaeochromocytoma or renal artery narrowing rather than ordinary blood pressure.
Testing, surveillance and specialist care
A structured annual review at an NF-experienced clinic keeps this calibration professional rather than anxious - covering blood pressure, skin, vision, pain and function, triggering imaging on indication, and coordinating breast screening enrolment for women. Genetic counselling remains available for family planning at every stage. NHS clinical genetics services carry some of the longest waits in the health service, often many months for a first appointment, whereas private genetic testing and a specialist review can typically be arranged within around two weeks.
Seeing a specialist
Who to see, and how quickly you can be seen.
The specialist for this condition is usually a NF specialist clinic or clinical geneticist. 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 emergency symptoms.
Frequently asked
Common questions about NF1 in adults: surveillance.
Quick, plain-English answers to what people ask us most.
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What surveillance is needed for adults with NF1?
Adults with neurofibromatosis type 1 need regular monitoring for skin and nerve tumour changes, blood pressure checks, eye examinations, and awareness of rare but serious complications such as malignant transformation of neurofibromas.
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Why does NF1 need ongoing surveillance in adulthood?
NF1 can affect multiple body systems throughout life, and while many features are stable, some complications, including certain tumours and cardiovascular issues, can develop or change over time, making regular monitoring valuable even in adults who've had the condition since birth.
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What symptoms in an adult with NF1 need prompt assessment?
Any neurofibroma that suddenly grows, becomes painful, or changes texture needs prompt assessment to exclude malignant transformation, along with any new neurological symptoms, vision changes, or significantly raised blood pressure.
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How often should adults with NF1 have specialist reviews?
Frequency varies by individual risk and specific NF1 features present, but many specialist centres recommend at least annual review, with more frequent assessment if any concerning changes are noted.
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What does NF1 surveillance typically include?
Surveillance often includes skin examination, blood pressure monitoring, eye checks, and specific imaging or further assessment if concerning symptoms or a rapidly changing neurofibroma are identified.
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When should an adult with NF1 seek specialist review, and how quickly can this be arranged privately?
Seek prompt specialist review for any neurofibroma that changes rapidly, or for annual surveillance. A private specialist NF1 clinic or neurologist can typically arrange assessment within about two weeks.