Health conditions: S

322 guides

• Sacral dimple in babies: what it is, causes and when it needs a scan
• Sacroiliac joint pain: symptoms, causes and treatment
• Salivary gland cancer: symptoms and treatment
• Salivary gland disorders: causes and treatment
• Salivary gland stones: symptoms and treatment
• Salmonella infection: symptoms, how long it lasts and treatment
• Salt cravings and hormones: when a craving for salty food needs checking
• SAPHO syndrome: skin and bone inflammation explained
• SAPHO syndrome: the bone lesions
• Sapovirus Infection
• Sarcoidosis lung
• Sarcoidosis of the skin
• Sarcoidosis systemic guide
• Sarcoidosis: lung staging explained
• Sarcoidosis: symptoms, causes, treatment and outlook
• Sarcoma red flags lumps
• Sarcoma soft tissue guide
• Sarcoma: what it is, symptoms, diagnosis and treatment
• Sarcopenia: age-related muscle loss, symptoms, causes and what helps
• SARS: what it is, symptoms, how it spread and whether it still exists
• Scabies: symptoms, treatment, how long it lasts and how it spreads
• SCAD (spontaneous coronary artery dissection): symptoms, causes, treatment and recovery
• SCAD deep dive
• Scalp psoriasis: treatment, symptoms and everyday scalp care
• Scalp ringworm (tinea capitis): causes and treatment
• Scalp tingling: common causes and when to see a doctor
• Scarlet fever: symptoms, rash, how long it is contagious and treatment
• Scarring alopecia: types, causes, diagnosis and treatment
• Scars: types, healing and treatment options
• Schistosomiasis (bilharzia): symptoms, risk areas and treatment
• Schizoaffective disorder: symptoms, causes, diagnosis and treatment
• Schizoid personality disorder: symptoms, causes and treatment
• Schizophrenia: symptoms, causes, diagnosis and treatment
• Schizophreniform Disorder
• Schizotypal personality disorder: unusual thinking, social difficulty and support
• Schnitzler syndrome: a rare autoinflammatory condition with a chronic rash
• School refusal support
• Schwannoma: symptoms, causes and treatment
• Schwannomatosis: causes, symptoms and diagnosis
• Sciatica: symptoms, treatment, how long it lasts and when to get help
• Scleredema adultorum
• Scleritis: symptoms, causes and treatment
• Scleroderma: symptoms, types, causes and treatment
• Scleromyxoedema: symptoms, causes, tests and treatment
• Sclerosing mesenteritis: a rare abdominal condition
• Scoliosis in teenagers
• Scoliosis: symptoms, causes and treatment
• Scorpion stings: symptoms, first aid and when to act
• Scrotal lumps and swellings: causes and when to worry
• Scrotal swelling: causes, when to seek urgent help and how it is assessed in the UK
• Scrub typhus: symptoms, causes, diagnosis and treatment
• Scrupulosity: religious and moral OCD, symptoms and treatment in the UK
• SDH-related paraganglioma
• Seasonal affective disorder (SAD): symptoms, causes, treatment and how long it lasts
• Seasonal allergic rhinitis (hay fever): symptoms and treatment
• Sebaceous carcinoma: a rare skin cancer
• Sebaceous cyst: what it is, treatment and removal
• Seborrhoeic dermatitis: symptoms, causes and treatment
• Seborrhoeic keratosis (seborrheic keratosis): causes, removal and when to worry
• Second impact syndrome: why you must not play on after concussion
• Second-degree heart block (Mobitz type II): symptoms, tests and pacemakers
• Second-degree heart block, Mobitz type I (Wenckebach): symptoms, tests and treatment
• Secondary amenorrhoea (periods that have stopped): causes, tests and treatment in the UK
• Secondary cataract (posterior capsule opacification): causes and treatment
• Secondary dysmenorrhoea: painful periods caused by another condition
• Secondary hypertension: causes of high blood pressure and when to look for them
• Secondary hypertension: causes, clues, tests and treatment in the UK
• Secondary immunodeficiency causes
• Secondary infertility: when conceiving again is difficult, causes and options in the UK
• Secondary Membranous Nephropathy
• Secondary osteoarthritis: joint wear that follows another cause
• Secondary progressive multiple sclerosis (SPMS): symptoms, treatment and living with it
• Secondhand smoke exposure: health effects and how to protect yourself and children
• Seizures and driving: the UK rules
• Seizures: symptoms, causes, first aid and treatment
• Selective IgA deficiency deep dive
• Selective mutism: what it is, signs in children, causes and treatment
• Selenium and Hashimoto's thyroiditis: what UK sources say about supplements
• Self-catheterisation guide
• Self-harm support pathways
• Self-injury: understanding it and getting support
• Semen analysis results: reading the report and what happens next
• Sensitive skin diagnosis
• Sensorineural hearing loss: causes, symptoms and treatment
• Sensory issues in children: signs, causes and how to help
• Sensory processing difficulties: signs, causes and support in the UK
• Sentinel Lymph Node Biopsy
• Separation anxiety disorder in children: signs, causes and how it is treated
• Sepsis-associated acute kidney injury
• Sepsis: symptoms, causes, treatment and recovery
• Septic arthritis: symptoms, causes, treatment and recovery
• Seronegative APS debate
• Seronegative myasthenia gravis: when the antibody test is normal
• Seronegative RA journey
• Seronegative rheumatoid arthritis: when blood tests are negative
• Seronegative Sjögren
• Serotonin syndrome: symptoms, causes, treatment and how long it lasts
• Serous and clear cell endometrial cancer (type 2) and molecular classification
• Serpiginous choroiditis (serpiginous choroidopathy): symptoms, diagnosis and care
• Serrated polyposis syndrome: diagnosis, bowel cancer risk and surveillance
• Sertoli-cell-only syndrome and other causes of non-obstructive azoospermia
• Set point and plateaus
• Sever
• Sever's disease: heel pain in growing children
• Severe asthma biologics: how biological treatments work and who can have them
• Severe cholinergic urticaria
• Severe congenital neutropenia adults
• Severe insulin resistance syndromes
• Severe persistent asthma: when asthma is hard to control and what specialists can offer
• Severe PMS and PMDD: symptoms, diagnosis and treatment
• Sex after cancer
• Sexual health MOT couples
• Sézary syndrome: what to know
• Sharing genetic results in families
• Sheehan
• Shellfish allergy: symptoms, testing, avoidance and emergency treatment in the UK
• Shift work sleep disorder: symptoms, risks and what helps
• Shigellosis (shigella infection): symptoms, treatment and prevention in the UK
• Shin splints: symptoms, treatment and how long they last
• Shingles (herpes zoster): symptoms, treatment and the vaccine
• Shingles vaccine in the UK: eligibility, doses and timing
• Shingles: symptoms, treatment within 3 days and the NHS vaccine
• Shingles: symptoms, treatment, how long it lasts and whether it is contagious
• Short bowel syndrome: causes, parenteral nutrition and treatment
• Short QT syndrome: symptoms, diagnosis and treatment
• Short stature assessment
• Short-term (acute) insomnia: what helps and when to seek advice
• Shoulder arthritis: symptoms, diagnosis and treatment options
• Shoulder dystocia: what it is and how maternity teams manage it
• Shoulder impingement: symptoms, treatment, exercises and how long it takes to recover
• Shoulder osteoarthritis: symptoms, treatment and shoulder replacement
• Shoulder pain at night: causes, what helps and when to see a GP
• Shprintzen-Goldberg syndrome
• SIADH deep dive
• SIADH: symptoms, treatment, diagnosis and causes of low sodium
• SIBO (small intestinal bacterial overgrowth): symptoms, diet and treatment
• Sick sinus syndrome young
• Sick sinus syndrome: symptoms, causes, tests and pacemaker treatment
• Sickle cell crisis management
• Sickle cell disease in adults
• Sickle cell disease in pregnancy: care and risks
• Sickle cell disease: symptoms, causes, treatment and screening
• Sickle cell nephropathy
• Sickle cell trait
• Sideroblastic anaemia: causes, symptoms, tests and treatment
• Sighing and breathlessness: breathing pattern disorder explained
• Silent myocardial ischaemia and silent heart attacks: what they are and who is at risk
• Silent reflux (LPR)
• Silicone gel and sheets for scar management: how they are used
• Silicosis: symptoms, causes and treatment
• Sinonasal tumours
• Sinus headache vs migraine
• Sinus surgery: deciding if it
• Sinusitis: symptoms, treatment, how long it lasts and when to see a GP
• Sjögren
• Sjögren's syndrome: symptoms, tests and treatment
• Skin abscess: symptoms, causes, drainage and when to get help
• Skin biopsy what to expect
• Skin cancer symptoms: what to look for and when to see a GP
• Skin cancer: signs and symptoms, types, causes and treatment
• Skin lesion removal options
• Skin peeling on the hands and feet: causes and when to see a GP
• Skin picking disorder (dermatillomania): symptoms, causes and treatment
• Skin picking marks
• Skin tags: causes, removal and when to see a GP
• Skull base tumours
• SLAP tear of the shoulder: symptoms, treatment options and recovery after repair
• Sleep anxiety: when worry stops you sleeping and what helps
• Sleep apnoea testing options
• Sleep bruxism: night-time teeth grinding, jaw pain and splints
• Sleep disorders: main types, tests and treatment
• Sleep problems in children
• Sleep seizures (nocturnal epilepsy)
• Sleep terrors (night terrors): what they are, causes and what to do
• Sleeping sickness (human African trypanosomiasis): symptoms, diagnosis and treatment
• Sleepwalking: causes, safety at home and when to seek help
• Slow metabolism tests
• Slow-healing wounds: why they happen, what to do and when to get help
• SMA syndrome deep dive
• Small bowel cancer
• Small bowel diverticulosis
• Small cell lung cancer: symptoms, diagnosis, stages and treatment
• Small fibre neuropathy
• Small-duct PSC
• Smith-Lemli-Opitz syndrome
• Smoker
• Smouldering myeloma
• Snake bites and venom poisoning in the UK: adder bites, first aid and treatment
• Snoring with witnessed apnoeas
• Snoring: causes, treatment and when it points to sleep apnoea
• Social anxiety disorder: symptoms, causes, CBT and getting help
• Sodium channelopathy pain syndromes
• Soil-transmitted helminths: worm infections and travel
• Soiling and withholding
• Solar urticaria
• Solitary rectal ulcer syndrome: causes and care
• Somatic symptom disorder: persistent physical symptoms and how they are treated
• Somatostatinoma: a rare pancreatic and duodenal neuroendocrine tumour
• Soy (soya) allergy: symptoms, label reading and what to avoid in the UK
• Spasmodic dysphonia (laryngeal dystonia): symptoms, diagnosis and treatment
• Spasticity: what it is, symptoms, causes and treatment
• Specific antibody deficiency
• Specific phobia: symptoms, causes and treatment of intense, focused fears
• Speech delay when to refer
• Sphincter of Oddi dysfunction (biliary sphincter disorder): symptoms and treatment
• Spinal cord compression: warning signs
• Spinal cord injury: effects, care and rehabilitation
• Spinal cord stimulation for chronic pain: who it is for and how it works
• Spinal cord stimulator: how it works, who it is for, risks and recovery
• Spinal cord tumours
• Spinal muscular atrophy adults
• Spinal muscular atrophy in children: SMN1, newborn screening and the UK treatment pathway
• Spinal stenosis: symptoms, causes, treatment and outlook
• Spinal tumours: types, symptoms and treatment
• Spinocerebellar ataxias
• Spirometry results explained
• Splanchnic vein thrombosis
• Splenectomy (spleen removal): reasons, recovery and living without a spleen
• Splenectomy infection prevention
• Split-thickness skin graft: what it is, aftercare and recovery
• Spondyloarthritis with uveitis: eye inflammation in axial spondyloarthritis
• Spondylolisthesis: symptoms, treatment, causes and when surgery is needed
• Spontaneous bacterial peritonitis: symptoms, causes and treatment
• Spontaneous intracranial hypotension: the headache that eases when lying down
• Sporotrichosis (rose gardener's disease): causes, symptoms and treatment
• Sports groin injuries
• Sports hernia (sportsman's groin): symptoms, diagnosis and treatment
• Squamous cell carcinoma of the skin: symptoms, treatment and outlook
• Squamous cell lung cancer: symptoms, diagnosis and treatment in the UK
• Squint in adults
• Squint in children
• St John's wort for depression: what the evidence says and the risks
• Stable angina: symptoms, GTN, tests and treatment
• Staphylococcal scalded skin syndrome (SSSS)
• Stargardt disease: symptoms, genetics, diagnosis and living with it
• Stasis dermatitis (varicose eczema): symptoms, causes and treatment
• STAT3 disorders
• Statin decision guide
• Statin side effects: muscle pain, how long they last and what to do
• Statin-induced myopathy: muscle pain, weakness and what to do
• Status epilepticus: what it is, when to call 999 and how it is treated
• STEMI (ST-elevation heart attack): emergency signs, treatment and recovery
• Steroid-induced adrenal suppression
• Steroid-induced osteoporosis: protecting your bones on long-term steroid tablets
• Stevens-Johnson syndrome and the eyes: ocular involvement and care
• STI window periods
• Stickler syndrome: eyes, hearing, joints and retinal detachment risk
• Stiff-person syndrome: what it is, symptoms, causes and diagnosis
• Stillbirth: causes, investigations and bereavement care in the UK
• Stimulant use disorder: cocaine and amphetamine addiction, risks and help in the UK
• Stimulant-induced arrhythmia: heart rhythm problems after stimulant drugs
• Stomach cancer: symptoms, causes, tests and treatment
• Strep throat: symptoms, is it contagious, how long it lasts and treatment
• Streptococcus pneumoniae (pneumococcus): infections, symptoms and vaccination in the UK
• Stress fracture: symptoms, healing time, treatment and return to sport
• Stress fractures: causes, symptoms and recovery
• Stress incontinence: causes, pelvic floor exercises and treatment
• Stress Ulcer (ICU)
• Stretch marks treatments
• Stroke in young adults: causes
• Stroke recovery: what to expect and when
• Stroke warning signs: the FAST test and other symptoms to act on at once
• Stroke: symptoms, causes, treatment and recovery
• Strongyloidiasis: a long-lasting worm infection, risks and diagnosis in the UK
• Struggling to lose weight: medical causes, tests and treatment options
• Struma ovarii
• Struvite kidney stones (infection stones): causes and treatment
• Strychnine Poisoning
• Subarachnoid haemorrhage: symptoms, causes, treatment and recovery
• Subclinical Hyperthyroidism: Low TSH, Normal T4
• Subclinical hypothyroidism: symptoms, treatment and what a borderline TSH means
• Subconjunctival haemorrhage: a burst blood vessel in the eye
• Subdural haematoma: symptoms, causes, treatment and recovery
• Subjective tinnitus: ringing in the ears, causes and coping
• Substance-Induced Anxiety Disorder
• Substance-Induced Bipolar Disorder
• Substance-Induced Depressive Disorder
• Substance-induced psychosis: symptoms, causes and treatment
• Sudden cardiac arrest: causes, CPR and recovery
• Sudden cardiac death in athletes: causes, warning signs and screening
• Sudden death family screening
• Sudden sensorineural hearing loss (SSHL): why speed matters
• Sudden vision changes: causes, red flags and what to do
• Suicidal thoughts and suicidal crisis: getting help in the UK
• Sulphite sensitivity genetics
• Sun damage repair
• SUNCT and SUNA: rare short-lasting headache disorders explained
• Superior mesenteric artery syndrome
• Superior vena cava syndrome (SVC obstruction): symptoms, causes and treatment
• Supraventricular tachycardia (SVT): treatment, symptoms, causes and when to get help
• Surgical drains: why they are used and how to manage one at home
• Surgical Graft Materials
• Surgical Hemorrhage Control
• Surgical menopause after ovary removal: symptoms, HRT and bone health
• Surgical Mesh Types
• Surgical site infection: signs, prevention and treatment after an operation
• Surgical Suture Types
• Surgical Wound Dehiscence
• Survivorship after rare cancer
• Susac syndrome and the eye
• Susac syndrome: brain, eye and hearing symptoms, diagnosis and treatment
• Susceptibility to PRES
• Swallowing problems: how they are assessed
• Sweet syndrome
• Swimmer's itch: causes, rash and what helps
• Swollen glands in children
• Swollen glands persistent
• Swollen lymph nodes: how long they last, causes and when to see a GP
• Swyer-James syndrome: the lung that looks darker on a scan
• Sympathetic ophthalmia: inflammation in both eyes after one-eye injury
• Syncope (fainting): symptoms, causes, tests and treatment
• Synovial sarcoma: symptoms, diagnosis and treatment in the UK
• Synthetic cannabinoid toxicity (Spice): symptoms, risks and when to call 999
• Synthetic Cathinones (Bath Salts) Toxicity
• Syphilis testing: who should be tested, what the test involves and what happens next
• Syphilis: symptoms, testing, treatment and pregnancy
• Syringomyelia deep dive
• Syringomyelia: symptoms, causes and treatment
• Systemic lupus: symptoms, diagnosis and treatment
• Systemic mastocytosis: symptoms, diagnosis, subtypes and treatment
• Systemic sclerosis gut
• Systemic sclerosis: symptoms, types, treatment and outlook