Health A-Z
- SARS (severe acute respiratory syndrome)
- Salivary gland stones
- Sarcoidosis
- Scabies
- Scarlet fever
- Scars
- Schistosomiasis (bilharzia)
- Schizophrenia
- Sciatica
- Scleroderma
- Scoliosis
- Scurvy
- Seasonal affective disorder (SAD)
- Selective mutism
- Selective serotonin reuptake inhibitors (SSRIs)
- Self-harm
- Sepsis
- Septic arthritis
- Septic shock
- Severe head injury
- Sexually transmitted infections (STIs)
- Shin splints
- Shingles
- Short-sightedness (myopia)
- Shortness of breath
- Shoulder impingement
- Shoulder pain
- Sick building syndrome
- Sickle cell disease
- Silicosis
- Sinusitis (sinus infection)
- Sjögren's syndrome
- Skin cancer (melanoma)
- Skin cancer (non-melanoma)
- Skin cyst
- Skin picking disorder
- Skin tags
- Slapped cheek syndrome
- Sleep paralysis
- Sleepwalking
- Slipped disc
- Small bowel transplant
- Smelling things that aren't there (phantosmia)
- Smelly urine
- Snake bites
- Snoring
- Social anxiety (social phobia)
- Social care and support guide
- Soft tissue sarcomas
- Soiling (child pooing their pants)
- Sore or dry lips
- Sore or white tongue
- Sore throat
- Spina bifida
- Spinal muscular atrophy
- Spirometry
- Spleen problems and spleen removal
- Spondylolisthesis
- Sports injuries
- Sprains and strains
- Squint
- Stammering
- Staph infection
- Statins
- Stem cell and bone marrow transplants
- Steroid inhalers
- Steroid injections
- Steroid nasal sprays
- Steroid tablets
- Steroids
- Stevens-Johnson syndrome
- Stillbirth
- Stomach ache
- Stomach cancer
- Stomach ulcer
- Stop smoking treatments
- Stopped or missed periods
- Stretch marks
- Stroke
- Stye
- Subarachnoid haemorrhage
- Subdural haematoma
- Sudden confusion (delirium)
- Sudden infant death syndrome (SIDS)
- Sunburn
- Supraventricular tachycardia (SVT)
- Swine flu (H1N1)
- Swollen ankles, feet and legs (oedema)
- Swollen glands
- Syphilis
