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Symptoms Beginning With N
10 symptoms in this guide begin with the letter N. Every name links to a plain-language page covering what the symptom can feel like, the conditions it can be associated with, its red flags, and what a clinician may do.
A B C D E F G H I J K L M N O P R S T U V W
| Symptom | Category | What it can feel like |
|---|---|---|
| Nail changes | Skin | Nail changes include thickening, discolouration (yellow, white, green, black), ridging, splitting, crumbling, lifting from the bed, and shape change such as clubbing of… |
| Nausea | Digestive | Nausea is the feeling of sickness — a queasy, unsettled stomach and the sense that you might vomit, often with sweating, salivation and loss of appetite. It is a symptom… |
| Neck pain | Muscles & Joints | Neck pain is pain in and around the neck, often with stiffness and reduced turning of the head. It is commonly muscular — sleeping awkwardly, desk posture, stress — and… |
| Needing to urinate at night | Urinary | Needing to urinate at night (nocturia) means waking one or more times to pass urine. Once a night is common and often normal, especially with age; waking two or more… |
| Needing to urinate often | Urinary | Needing to urinate often means passing urine many more times a day than usual, often in small amounts, sometimes with urgency. It is a bladder-storage problem: the… |
| Night sweats | General | Night sweats are episodes of heavy sweating during sleep that soak nightclothes or bedding and are not explained by a warm room or heavy covers. Occasional mild sweating… |
| Nipple discharge | Women's Health | Nipple discharge means fluid coming from the nipple when you are not breastfeeding. Milky discharge from both breasts has hormone and medicine causes; discharge that is… |
| Noisy breathing | Lungs & Breathing | Noisy breathing means breathing you can hear without a stethoscope — whistling, rattling, snoring-like or harsh crowing sounds. A harsh sound mainly on breathing in… |
| Nosebleeds | Head & Senses | A nosebleed is bleeding from the delicate blood vessels inside the nose, usually from the front part of the septum. Most stop with simple first aid — sit up, lean… |
| Numbness | Brain & Nerves | Numbness means reduced or absent feeling in an area of skin — as if it has been injected by the dentist, or is wrapped in thick material. Where the numbness sits maps… |
Please note: This page is educational information about a symptom. A symptom alone cannot diagnose any condition, and the causes listed here are possibilities, not a diagnosis. If you are worried about a symptom — especially one that is new, severe, getting worse or not going away — please see your own clinician, who can examine you and arrange tests. In an emergency, call your local emergency number.