Na
- (Symptoms)
- Nail avulsion (see: Nail injuries)(Self-Care)
- Nail bed injury (see: Nail injuries)(Self-Care)
- (Self-Care)
- Nail laceration (see: Nail injuries)(Self-Care)
- Narcolepsy (see: Sleep disorders)(Condition)
- Narcotic use (see: Substance use disorder)(Condition)
- Narcotics - substance use (see: Substance use - prescription drugs)(Special Topic)
- Narrow-angle glaucoma (see: Glaucoma)(Condition)
- Narrow-angle glaucoma - InDepth (see: Glaucoma - InDepth)(In-Depth)
- Nasal airway surgery (see: Turbinate surgery)(Surgery)
- (Medical Test)
- Nasal irrigation (see: Saline nasal washes)(Self-Care)
- Nasal lavage (see: Saline nasal washes)(Self-Care)
- Nasal obstruction - turbinate surgery (see: Turbinate surgery)(Surgery)
- NASH (see: Nonalcoholic fatty liver disease)(Condition)
- (Symptoms)
Nb
- NBP (see: Prostatitis - nonbacterial)(Condition)
Nc
- nCoV (see: Middle East Respiratory Syndrome (MERS))(Special Topic)
Ne
- Neck arthritis (see: Cervical spondylosis)(Condition)
- (Surgery)
- (Discharge)
- (Symptoms)
- (Symptoms)
- Neck pain - kyphosis (see: Kyphosis)(Condition)
- (Self-Care)
- Neck stiffness (see: Neck pain)(Symptoms)
- Neck stiffness - self-care (see: Neck pain or spasms - self care)(Self-Care)
- Neck stiffness-self-care (see: Neck pain or spasms - self care)(Self-Care)
- (Medical Test)
- Necrotizing enterocolitis - short bowel (see: Short bowel syndrome)(Condition)
- Necrotizing pneumonia (see: Aspiration pneumonia)(Condition)
- Needle aponeurotomy - Dupuytren (see: Dupuytren contracture)(Condition)
- Needle release - Dupuytren (see: Dupuytren contracture)(Condition)
- Needle suspension (see: Urinary incontinence - retropubic suspension)(Surgery)
- Nephrectomy (see: Kidney removal)(Surgery)
- Nephrolithiasis (see: Kidney stones)(Condition)
- Nephrolithiasis - InDepth (see: Kidney stones - InDepth)(In-Depth)
- Nephrolithotomy (see: Percutaneous kidney procedures)(Surgery)
- Nephropathy - diabetic (see: Diabetes and kidney disease)(Condition)
- Nerve disease (see: Peripheral neuropathy)(Condition)
- Nerve pain (see: Neuralgia)(Condition)
- Nervous stomach (see: Irritable bowel syndrome)(Alt. Medicine)
- (Condition)
- Neurally mediated hypotension (see: Low blood pressure)(Condition)
- Neuritis - peripheral (see: Peripheral neuropathy)(Condition)
- Neurocognitive disorder - metabolic (see: Dementia due to metabolic causes)(Condition)
- Neurocognitive testing (see: Mental status testing)(Medical Test)
- Neurofibrosarcoma (see: Adult soft tissue sarcoma)(Condition)
- Neuroglioma - adults (see: Brain tumor - primary - adults)(Condition)
- Neurologic orthostatic hypotension (see: Multiple system atrophy - parkinsonian type)(Condition)
- Neuromodulation (see: Spinal cord stimulation)(Surgery)
- Neuronitis - vestibular - aftercare (see: Labyrinthitis - aftercare )(Self-Care)
- Neuropathic pain (see: Neuralgia)(Condition)
- Neuropathy - alcoholic (see: Alcoholic neuropathy)(Condition)
- Neuropathy - autonomic (see: Autonomic neuropathy)(Condition)
- Neuropathy - axillary nerve (see: Axillary nerve dysfunction)(Condition)
- Neuropathy - metabolic (see: Metabolic neuropathies)(Condition)
- Neuropathy - peripheral (see: Peripheral neuropathy)(Condition)
- Neuropathy - sciatic nerve (see: Sciatica)(Condition)
- Neuropathy - sciatic nerve - InDepth (see: Back pain and sciatica - InDepth)(In-Depth)
- (Condition)
- Neurostimulator (see: Spinal cord stimulation)(Surgery)
- Neurosurgery (see: Brain surgery)(Surgery)
- Neurotic depression (dysthymia) (see: Persistent depressive disorder)(Condition)
- Neutropenia and cancer (see: Low white blood cell count and cancer)(Special Topic)
- New-onset angina (see: Unstable angina)(Condition)
- New-onset angina-ACS (see: Acute coronary syndrome)(Condition)
Ni
- (Special Topic)
- Niacor (see: Niacin for cholesterol)(Special Topic)
- Niacor: Hyperlipidemia - niacin (see: Niacin for cholesterol)(Special Topic)
- Niaspan (see: Niacin for cholesterol)(Special Topic)
- Nibbles (see: 12 healthy snacks with 200 calories or less)(Special Topic)
- Nicotine - risks (see: Risks of tobacco)(Special Topic)
- Nicotine cessation - tips (see: Tips on how to quit smoking)(Special Topic)
- Nicotine cessation - weight gain (see: Weight gain after quitting smoking: What to do)(Self-Care)
- Nicotinic acid (see: Niacin for cholesterol)(Special Topic)
- Night blindness (see: Vision - night blindness)(Symptoms)
- Nipple discharge (see: Breast skin and nipple changes)(Self-Care)
- Nipple sparing mastectomy (see: Mastectomy)(Surgery)
- Nissen fundoplication (see: Anti-reflux surgery)(Surgery)
Nm
- NMH (see: Low blood pressure)(Condition)
- NMR - cranial (see: Head MRI)(Medical Test)
- NMSC - squamous cell (see: Squamous cell skin cancer)(Condition)
No
- No code (see: Do-not-resuscitate order)(Special Topic)
- No light perception (NLP) (see: Blindness and vision loss)(Symptoms)
- Nocturia (see: Urinating more at night)(Symptoms)
- Nocturnal myoclonus (see: Restless legs syndrome)(Condition)
- Nodular melanoma (see: Melanoma)(Condition)
- Nodular melanoma - InDepth (see: Melanoma and other skin cancers - InDepth)(In-Depth)
- Nodule - thyroid cancer (see: Thyroid cancer)(Condition)
- Noise induced hearing loss - music (see: Hearing loss and music)(Self-Care)
- Noises or buzzing in the ears (see: Tinnitus)(Symptoms)
- Non ST-elevation myocardial infarction - ACS (see: Acute coronary syndrome)(Condition)
- Non ST-elevation myocardial infarction - ACS - InDepth (see: Heart attack and acute coronary syndrome - InDepth)(In-Depth)
- Non-cardiac chest pain (see: Heartburn)(Symptoms)
- Non-exercise activity thermogenesis (NEAT) (see: Can you boost your metabolism?)(Special Topic)
- Non-invasive neurosugery (see: Stereotactic radiosurgery - Gamma Knife)(Surgery)
- Non-invasive neurosurgery (see: Stereotactic radiosurgery - Gamma Knife)(Surgery)
- Non-polio enterovirus (see: Enterovirus D68)(Discharge)
- Non-scarring alopecia (see: Hair loss)(Symptoms)
- (In-Depth)
- Non-ST - elevation myocardial infarction (see: Heart attack)(Condition)
- Non-ST-elevation myocardial infarction (see: Heart attack)(Condition)
- Non-ST-elevation myocardial infarction - InDepth (see: Heart attack and acute coronary syndrome - InDepth)(In-Depth)
- Non-ST-elevation myocardial infarction-ACS (see: Acute coronary syndrome)(Condition)
- (Condition)
- Nonalcoholic steatohepatitis (see: Nonalcoholic fatty liver disease)(Condition)
- Noninsulin-dependent diabetes (see: Type 2 diabetes)(Condition)
- Noninsulin-dependent diabetes, DM2, Type 2 DM - InDepth (see: Diabetes - type 2 - InDepth)(In-Depth)
- Nonketotic hyperglycemic hyperosmolar coma (NKHHC) (see: Diabetic hyperglycemic hyperosmolar syndrome)(Condition)
- Nonmelanoma skin cancer (see: Basal cell skin cancer)(Condition)
- Nonmelanoma skin cancer - InDepth (see: Melanoma and other skin cancers - InDepth)(In-Depth)
- Nonmelanoma skin cancer - squamous cell (see: Squamous cell skin cancer)(Condition)
- Nonseminoma testicular cancer (see: Testicular cancer)(Condition)
- Nonspecific back pain - InDepth (see: Back pain and sciatica - InDepth)(In-Depth)
- Nonspecific vaginitis - aftercare (see: Bacterial vaginosis - aftercare)(Self-Care)
- (Condition)
- Norwalk virus (see: Viral gastroenteritis (stomach flu))(Condition)
- Nose - bulbous (see: Rhinophyma)(Condition)
- Nosocomial pneumonia (see: Hospital-acquired pneumonia)(Condition)
- Nosocomial UTI (see: Catheter-related UTI)(Condition)
- Not breathing (see: Breathing - slowed or stopped)(Symptoms)
- Novasure ablation (see: Endometrial ablation)(Surgery)
- Novel coronavirus (see: Middle East Respiratory Syndrome (MERS))(Special Topic)
Np
- NPH (see: Normal pressure hydrocephalus)(Condition)
Ns
- NSCLC - InDepth (see: Non-small cell lung cancer - InDepth)(In-Depth)
- NSTEMI (see: Heart attack)(Condition)
- NSTEMI - InDepth (see: Heart attack and acute coronary syndrome - InDepth)(In-Depth)
Nu
- Nuclear cardiology (see: Nuclear ventriculography)(Medical Test)
- Nuclear magnetic resonance (NMR) imaging (see: MRI)(Medical Test)
- Nuclear magnetic resonance - cranial (see: Head MRI)(Medical Test)
- (Medical Test)
- (Symptoms)
Ny
- Nyctalopia (see: Vision - night blindness)(Symptoms)
- Nyctanopia (see: Vision - night blindness)(Symptoms)
- (Symptoms)