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Symptoms Beginning With S
15 symptoms in this guide begin with the letter S. 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 |
|---|---|---|
| Sciatica | Muscles & Joints | Sciatica is pain that travels from the lower back or buttock down the back of the leg, sometimes to the foot, often with tingling, pins and needles or numbness in the… |
| Seizures | Brain & Nerves | A seizure is a burst of abnormal electrical activity in the brain, producing episodes such as convulsions with stiffening and jerking, blank staring spells, sudden… |
| Shoulder pain | Muscles & Joints | Shoulder pain is pain in and around the shoulder joint, often worse reaching overhead, lying on that side, or doing up clothing behind the back. The shoulder's wide… |
| Signs of dehydration | General | Dehydration means the body has lost more water than it has taken in. Early signs are thirst, a dry mouth, darker urine and passing urine less often; as it worsens there… |
| Sinus pain and pressure | Head & Senses | Sinus pain and pressure is an aching, full feeling over the forehead, cheeks or between the eyes, often worse bending forward, with nasal blockage and discoloured… |
| Sleeping too much | Mind & Sleep | Sleeping too much (hypersomnia) means regularly sleeping far beyond the usual adult range — nine, ten or more hours — and still feeling unrefreshed, or falling asleep… |
| Sleepwalking | Mind & Sleep | Sleepwalking means getting up and performing activities — walking, talking, sometimes eating or attempting complex tasks — while still asleep, with little or no memory… |
| Snoring | Mind & Sleep | Snoring is the sound of a partially obstructed upper airway vibrating during sleep. Simple snoring is common and mainly a partner problem; snoring becomes medically… |
| Sore throat | Head & Senses | A sore throat is pain, scratchiness or rawness in the throat, often worse on swallowing. Most sore throats are viral and settle within a week; the pattern of fever… |
| Sudden urgency to urinate | Urinary | Sudden urgency is a compelling, hard-to-defer need to pass urine — the 'when I've got to go, I've got to go' feeling — sometimes with leakage if a toilet is not reached… |
| Swelling in one leg | Chest & Heart | Swelling in one leg only means one calf or leg is visibly bigger than the other, sometimes with aching, tightness, warmth or redness. Because the causes include a deep… |
| Swollen abdomen | Digestive | A swollen abdomen means the belly is visibly larger than usual. Some swelling fluctuates with gas and meals; a steadily enlarging abdomen over days to weeks, especially… |
| Swollen ankles | Chest & Heart | Swollen ankles mean fluid has collected in the tissues around the ankles and feet, making shoes tight and sometimes leaving a pit when the skin is pressed. Ankles that… |
| Swollen glands | General | Swollen glands means the lymph nodes — small filtering stations of the immune system in the neck, armpits, groin and elsewhere — have enlarged enough to feel, sometimes… |
| Swollen joints | Muscles & Joints | A swollen joint means fluid or thickened lining has increased the joint's size — it looks puffy, feels tight, and movement is limited. One joint or many, sudden or… |
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.