Health conditions: N
121 guides
- Nail changes to check
- Nail lichen planus: nail thinning, ridging and why early review matters
- Nail melanoma signs: dark streaks, nail changes and when to see a GP
- Nail pitting: small dents in the nails, causes and when to see a GP
- Nail psoriasis: pitting, lifting nails and treatment options in the UK
- Nail psoriasis: symptoms, treatment and nail care
- Nail ridges: vertical and horizontal lines on fingernails and what they mean
- Nail-patella syndrome: symptoms, kidney checks, genetics and management
- Nailfold capillaroscopy: what the test shows in Raynaud's and connective tissue disease
- NAION (non-arteritic anterior ischaemic optic neuropathy): symptoms and outlook
- Nappy rash
- Narcissistic personality disorder: symptoms, causes and treatment
- Narcolepsy: symptoms, diagnosis and treatment
- Narrow angles in the eye: what it means and when it needs treatment
- Narrow-angle (angle-closure) glaucoma: symptoms, emergency signs and treatment
- Nasal and Paranasal Sinus Tumours
- Nasal polyps: symptoms, causes, treatment and surgery
- Nasal valve collapse: causes, symptoms and treatment of a blocked nose
- Nasopharyngeal carcinoma
- Near-drowning: first aid, hospital observation and oxygen deprivation
- Nearsightedness (myopia)
- Neck grinding and cracking (crepitus): causes and when to worry
- Neck lump with an unknown primary: what it means and how it is investigated
- Neck lumps: common causes, when to see a GP and how they are investigated
- Neck pain: causes, treatment and when to see a doctor
- Necrobiosis lipoidica: symptoms, causes and treatment
- Necrotising fasciitis: symptoms, causes, treatment and why speed matters
- Negative pressure wound therapy (NPWT): what it is and what to expect
- Neonatal abstinence syndrome: signs of withdrawal in newborns and how babies are cared for
- Neonatal acne (baby acne): what it looks like, how long it lasts and when to see a GP
- Neonatal diabetes genes in adults
- Neonatal lupus: causes, signs in the baby and what happens next
- Neovascular glaucoma: causes, warning signs and treatment
- Nephrectomy (kidney removal): why it is done, recovery and living with one kidney
- Nephrogenic diabetes insipidus (AVP resistance): causes and management
- Nephrogenic Systemic Fibrosis
- Nephrogenic systemic fibrosis: what to know
- Nephronophthisis in adults
- Nephrotic syndrome: symptoms, causes, treatment and children
- Nerve Compression
- Nerve pain: treatment options
- NET surveillance and markers
- Netherton syndrome: symptoms, diagnosis and care
- Neuroblastoma: symptoms, tests and treatment in children
- Neurocysticercosis: tapeworm cysts in the brain and nervous system
- Neurodermatitis
- Neuroendocrine carcinoma high grade
- Neuroendocrine tumours
- Neuroendocrine tumours (NETs)
- Neuroendocrine tumours overview
- Neuroferritinopathy: symptoms, genetics and research
- Neurofibroma
- Neurofibromatosis type 1 (NF1)
- Neurofibromatosis type 2 (NF2)
- Neurofibromatosis: types, symptoms, causes and treatment
- Neurogenic bladder: causes, symptoms and management in the UK
- Neurogenic bladder: the rarer causes
- Neurological sleep disorders
- Neuromyelitis Optica (NMOSD)
- Neuromyotonia (Isaacs)
- Neuropathic pain: what it is, symptoms, causes and treatment
- Neurosarcoidosis: sarcoidosis affecting the nervous system
- Neurotrophic keratitis: a numb cornea that struggles to heal
- Neutropenia: what a low neutrophil count means, causes, symptoms and treatment
- New daily persistent headache (NDPH): symptoms, diagnosis and management
- Newborn and Paediatric Skin Problems
- Newborn blood spot screening: the ten conditions the NHS checks for
- Newborn screening SCID adults note
- NF1 in adults: surveillance
- NFKB1 and NFKB2 deficiency
- Nicotine dependence
- Nicotine dependence: withdrawal, treatments and quitting
- Niemann-Pick disease
- Niemann-Pick disease types A and B
- Niemann-Pick type C adults
- Night sweats in men: causes, what to check and when to see a GP
- Night sweats investigations
- Night vision problems: causes, what to check and when to see an optician
- Nightmares and nightmare disorder: causes, night terrors and what helps
- Nightmares treatment
- Nipah virus infection
- Nipple discharge: causes, when to see a GP and tests
- NMDA receptor encephalitis: symptoms, tests and treatment
- NMO spectrum disorder (NMOSD)
- Nocardia asteroides and nocardiosis: a rare infection explained
- Nocturia diagnosis
- Nocturia: waking at night to pass urine, causes and treatment
- Nodular melanoma: symptoms, what it looks like, diagnosis and treatment
- Nodular regenerative hyperplasia of the liver: causes, diagnosis and management
- Noise-induced hearing loss: causes, prevention and what helps
- Non-alcoholic steatohepatitis
- Non-allergic rhinitis
- Non-classic CAH
- Non-coeliac gluten sensitivity: symptoms, how it is assessed and what to do
- Non-epileptic attacks (dissociative seizures)
- Non-functioning pituitary adenoma: symptoms, tests, treatment and follow-up
- Non-Hodgkin lymphoma
- Non-Hodgkin Lymphoma
- Non-radiographic axial spondyloarthritis: symptoms, diagnosis and treatment
- Non-small cell lung cancer (NSCLC): types, symptoms, diagnosis and treatment
- Non-specific interstitial pneumonia (NSIP)
- Non-tuberculous mycobacterial lung infection
- Nonunion fracture
- Noonan syndrome in adults
- Noonan syndrome: what it is, symptoms, diagnosis and treatment
- Normal pressure hydrocephalus: symptoms, treatment and diagnosis
- Normal tension glaucoma: symptoms, tests and treatment
- Normocalcaemic hyperparathyroidism: raised PTH with normal calcium
- Norovirus (winter vomiting bug): symptoms, how long it lasts and how it spreads
- Nose and Sinus Tumours
- Nosebleed (epistaxis): how to stop it, causes and when to get help
- Nosebleeds (epistaxis)
- Nosebleeds frequent
- NRTI-associated lactic acidosis: a rare HIV medicine side effect
- NSAIDs and acute kidney injury: who is at risk and what to do
- NSTEMI (non-ST-elevation heart attack): symptoms, tests and treatment
- Numbness in hands and feet: causes, tests and when to see a GP
- Nummular (discoid) eczema: symptoms, triggers and treatment
- Nummular headache: coin-shaped scalp pain, causes and treatment
- Nutcracker syndrome: symptoms, causes, diagnosis and treatment
- Nutritional support in intensive care: tube feeding and drip feeding