Sa
- Saddle nose (see: Low nasal bridge)(Symptoms)
 - (Special Topic)
 - Safety in the home (see: Preventing falls)(Self-Care)
 - Sagittal craniectomy (see: Craniosynostosis repair)(Surgery)
 - Salivation (see: Drooling)(Symptoms)
 - Salmon patch (see: Stork bite)(Condition)
 - (Condition)
 - Salmonellosis (see: Salmonella enterocolitis)(Condition)
 - Salt-wasting nephropathy (see: Bartter syndrome)(Condition)
 - Sanfilippo syndrome (see: Mucopolysaccharidosis type III)(Condition)
 - (Condition)
 - Sarcoma botryoides (see: Rhabdomyosarcoma)(Condition)
 - Sarcoptes scabiei (see: Scabies)(Condition)
 - Saturnism (see: Lead poisoning)(Poison)
 
Sc
- (Condition)
 - (Condition)
 - Scaphocephaly (see: Craniosynostosis)(Condition)
 - Scarlatina (see: Scarlet fever)(Condition)
 - (Condition)
 - Schatzki's ring (see: Lower esophageal ring)(Condition)
 - Scheie syndrome (see: Mucopolysaccharidosis type I)(Condition)
 - Scheuermann disease (see: Kyphosis)(Condition)
 - Scheuermann's disease (see: Kyphosis)(Condition)
 - Schilder-Addison Complex (see: Adrenoleukodystrophy)(Condition)
 - (Special Topic)
 - (Special Topic)
 - SCI (see: Spinal injury)(Injury)
 - Scleral infection (see: Eye redness)(Symptoms)
 - Scleral injection (see: Eye redness)(Symptoms)
 - (Condition)
 - (In-Depth)
 - Scoliosis - Rett syndrome (see: Rett syndrome)(Condition)
 - Scorpion bite (see: Insect bites and stings)(Injury)
 - (Injury)
 - Scratch tests - allergy (see: Allergy testing - skin)(Medical Test)
 - Scrotum - empty (undescended testes) (see: Undescended testicle)(Condition)
 
Se
- Seasonal allergic rhinitis (see: Allergic rhinitis)(Condition)
 - Seasonal allergic rhinitis - InDepth (see: Allergic rhinitis - InDepth)(In-Depth)
 - Seasonal allergies (see: Allergic rhinitis)(Alt. Medicine)
 - Seasonal allergy (see: Allergic rhinitis)(Condition)
 - Seasonal allergy - InDepth (see: Allergic rhinitis - InDepth)(In-Depth)
 - Seasonal rhinitis - self-care (see: Allergic rhinitis - self-care)(Self-Care)
 - Seatworm (see: Pinworms)(Condition)
 - (Condition)
 - Seborrheic dermatitis – infant (see: Cradle cap)(Condition)
 - Seborrheic dermatitis - infant (see: Cradle cap)(Condition)
 - Seborrheic eczema (see: Seborrheic dermatitis)(Condition)
 - Second degree burn (see: Burns)(Injury)
 - Secondard bone tumor (see: Bone tumor)(Condition)
 - Secondary bone tumor (see: Bone tumor)(Condition)
 - Secondary glaucoma (see: Glaucoma)(Condition)
 - Secondary hypogonadism (see: Hypogonadotropic hypogonadism)(Condition)
 - Secondary pulmonary hypertension (see: Pulmonary hypertension)(Condition)
 - Secondary seizures (see: Seizures)(Symptoms)
 - Secondary tracheomalacia (see: Tracheomalacia - acquired)(Condition)
 - Secretory otitis media (see: Otitis media with effusion)(Condition)
 - Secundum ASD (see: Atrial septal defect (ASD))(Condition)
 - Seizure - absence (see: Absence seizure)(Condition)
 - Seizure - fever induced (see: Febrile seizures)(Condition)
 - Seizure - generalized (see: Bilateral tonic-clonic seizure)(Condition)
 - Seizure - grand mal (see: Bilateral tonic-clonic seizure)(Condition)
 - Seizure - petit mal (see: Absence seizure)(Condition)
 - Seizure - reactive (see: Seizures)(Symptoms)
 - Seizure - secondary (see: Seizures)(Symptoms)
 - Seizure - tonic-clonic (see: Bilateral tonic-clonic seizure)(Condition)
 - Seizure disorder (see: Epilepsy)(Condition)
 - Seizure disorder - InDepth (see: Epilepsy - InDepth)(In-Depth)
 - (Symptoms)
 - Seizures - what to ask your doctor - child (see: Epilepsy in children - what to ask your doctor)(Doctor Questions)
 - (Condition)
 - (Condition)
 - Sensorineural - cochlear (see: Cochlear implant)(Special Topic)
 - Sensorineural hearing loss (see: Hearing loss)(Symptoms)
 - Sensorineural hearing loss - infants (see: Hearing loss - infants)(Condition)
 - Sensory hallucinations (see: Hallucinations)(Symptoms)
 - (Condition)
 - Separation of the sutures (see: Sutures - separated)(Symptoms)
 - Sepsis - infant (see: Neonatal sepsis)(Condition)
 - Sepsis neonatorum (see: Neonatal sepsis)(Condition)
 - (Condition)
 - (Condition)
 - Septicemic shock (see: Septic shock)(Condition)
 - Serial chest x-ray (see: Chest x-ray)(Medical Test)
 - Serous labyrinthitis (see: Labyrinthitis)(Condition)
 - Serous otitis media (see: Otitis media with effusion)(Condition)
 - (Medical Test)
 - Setting limits (see: Discipline in children)(Special Topic)
 - Seventh cranial nerve palsy due to birth trauma (see: Facial nerve palsy due to birth trauma)(Condition)
 - Severe MPS I (see: Mucopolysaccharidosis type I)(Condition)
 - Sexual abuse - children (see: Sexual abuse in children - what to know)(Special Topic)
 - Sexual abuse - domestic violence (see: Domestic violence)(Special Topic)
 - (Special Topic)
 - Sexually transmitted disease (STD) - warts (see: Genital warts)(Condition)
 - Sexually transmitted infection (STI) - warts (see: Genital warts)(Condition)
 
Sh
- (Injury)
 - Shaken impact syndrome (see: Shaken baby syndrome)(Injury)
 - Shigella enteritis (see: Shigellosis)(Condition)
 - Shigella gastroenteritis (see: Shigellosis)(Condition)
 - (Condition)
 - Shingles and chickenpox (see: Varicella-zoster virus)(Alt. Medicine)
 - (In-Depth)
 - Shivering (see: Chills)(Symptoms)
 - (Symptoms)
 - Short stature - growth hormone deficiency (see: Growth hormone deficiency - children)(Condition)
 - Short-acting beta-agonists (see: Asthma - quick-relief drugs )(Self-Care)
 - Shortness of breath (see: Breathing difficulty)(Symptoms)
 - Shortness of breath - first aid (see: Breathing difficulties - first aid)(Injury)
 - Shortsightedness (see: Nearsightedness)(Condition)
 - Shunt - ventriculoperitoneal (see: Ventriculoperitoneal shunting)(Surgery)
 - Shunt revision (see: Ventriculoperitoneal shunting)(Surgery)
 
Si
- Sialorrhea (see: Drooling)(Symptoms)
 - Sibilant rhonchi (see: Wheezing)(Symptoms)
 - (Condition)
 - Sickle cell anemia (see: Sickle cell disease)(Condition)
 - Sickle cell anemia - InDepth (see: Sickle cell disease - InDepth)(In-Depth)
 - (Condition)
 - (In-Depth)
 - SIDS (see: Sudden infant death syndrome)(Condition)
 - Sigmoid volvulus (see: Volvulus - childhood)(Condition)
 - Silent ear infection (see: Otitis media with effusion)(Condition)
 - Silent otitis media (see: Otitis media with effusion)(Condition)
 - Silver syndrome (see: Silver-Russell syndrome)(Condition)
 - (Condition)
 - Simian crease (see: Single palmar crease)(Symptoms)
 - (Symptoms)
 - Single ventricle (see: Double inlet left ventricle )(Condition)
 - Singultus (see: Hiccups)(Symptoms)
 - Sinus arrest - sick sinus (see: Sick sinus syndrome)(Condition)
 - Sinus infection (see: Sinusitis)(Alt. Medicine)
 - Sinus infection (see: Sinusitis)(Condition)
 - Sinus infection - InDepth (see: Sinusitis - InDepth)(In-Depth)
 - Sinus inflammation (see: Sinusitis)(Alt. Medicine)
 - Sinus node dysfunction (see: Sick sinus syndrome)(Condition)
 - Sinus pause - sick sinus (see: Sick sinus syndrome)(Condition)
 - (Condition)
 - (Alt. Medicine)
 - Sinusitis - acute (see: Sinusitis)(Condition)
 - Sinusitis - acute - InDepth (see: Sinusitis - InDepth)(In-Depth)
 - Sinusitis - chronic (see: Sinusitis)(Condition)
 - Sinusitis - chronic - InDepth (see: Sinusitis - InDepth)(In-Depth)
 - (In-Depth)
 - Siphonaptera (see: Fleas)(Condition)
 - Sixth disease (see: Roseola)(Condition)
 
Sk
- (Symptoms)
 - Skin - abnormally light or dark (see: Abnormally dark or light skin)(Symptoms)
 - (Symptoms)
 - Skin - pale or gray (see: Paleness)(Symptoms)
 - (Symptoms)
 - Skin disorders - eczema (see: Eczema )(Alt. Medicine)
 - (Special Topic)
 - Skin hemorrhages (see: Purpura)(Symptoms)
 - Skin infection - bacterial (see: Cellulitis)(Condition)
 - Skin lesion (see: Rashes)(Symptoms)
 - (Symptoms)
 - Skin rash (see: Rashes)(Symptoms)
 - Skin rash - contact dermatitis (see: Contact dermatitis)(Condition)
 - Skin redness or inflammation (see: Rashes)(Symptoms)
 - Skin tests - allergy (see: Allergy testing - skin)(Medical Test)
 - (Injury)
 
Sl
- Slapped cheek (see: Fifth disease)(Condition)
 - Slapped cheek rash (see: Fifth disease)(Condition)
 - Sleep - bedtime habits (see: Bedtime habits for infants and children)(Special Topic)
 - (Alt. Medicine)
 - Sleep apnea - obstructive - InDepth (see: Obstructive sleep apnea - InDepth)(In-Depth)
 - Sleep disorder - sleep habits (see: Changing your sleep habits)(Self-Care)
 - (Condition)
 - Sleep disruptive behaviors (see: Sleep disorders)(Condition)
 - Sleep hygiene (see: Changing your sleep habits)(Self-Care)
 - Sleep rhythm (see: Sleep disorders)(Condition)
 - Sleep terror disorder (see: Night terrors in children)(Condition)
 - Sleep-disordered breathing - InDepth (see: Obstructive sleep apnea - InDepth)(In-Depth)
 - Sleeve gastrectomy or vertical sleeve surgery - after - what to ask your doctor (see: After weight-loss surgery - what to ask your doctor)(Doctor Questions)
 - Sleeve gastrectomy or vertical sleeve surgery - before - what to ask your doctor (see: Before weight-loss surgery - what to ask your doctor)(Doctor Questions)
 - SLI (see: Language disorders in children)(Condition)
 - (Condition)
 - Slow heart rate - sick sinus (see: Sick sinus syndrome)(Condition)
 - Slow rate of growth (see: Delayed growth)(Symptoms)
 - Slurred speech - dysarthria (see: Communicating with someone with dysarthria)(Self-Care)
 
Sm
- Small bowel obstruction (see: Intestinal obstruction and Ileus)(Condition)
 - (Injury)
 - (Symptoms)
 - SMILE - what to ask your doctor (see: Refractive corneal surgery - what to ask your doctor)(Doctor Questions)
 
Sn
- (Symptoms)
 - Snellen test (see: Visual acuity test)(Medical Test)
 
So
- Soft spot - bulging (see: Fontanelles - bulging)(Symptoms)
 - Soft spot - craniosynostosis (see: Craniosynostosis)(Condition)
 - Soft spot - large (see: Fontanelles - enlarged)(Symptoms)
 - Soft spot - sunken (see: Fontanelles - sunken)(Symptoms)
 - Soft tissue cancer - rhabdomyosarcoma (see: Rhabdomyosarcoma)(Condition)
 - Soft tissue sarcoma (see: Rhabdomyosarcoma)(Condition)
 - Soiling (see: Encopresis)(Condition)
 - Solar erythema (see: Sunburn)(Symptoms)
 - Solar erythema: Burn from the sun (see: Sunburn)(Symptoms)
 - Something stuck in the nose (see: Foreign body in the nose)(Injury)
 - Sore throat - tonsillectomy (see: Tonsillectomy)(Surgery)
 - Sore throat - tonsillitis (see: Tonsillitis)(Condition)
 - Sore throat strep (see: Strep throat)(Condition)
 - Sound distortion (see: Phonological disorder)(Condition)
 
Sp
- Spasm of the esophagus (see: Esophageal spasm)(Condition)
 - Spasmodic croup (see: Croup)(Condition)
 - Spasmodic torticollis (see: Torticollis)(Condition)
 - Spastic diplegia (see: Cerebral palsy)(Condition)
 - Spastic hemiplegia (see: Cerebral palsy)(Condition)
 - Spastic paralysis (see: Cerebral palsy)(Condition)
 - Spastic quadriplegia (see: Cerebral palsy)(Condition)
 - (Symptoms)
 - Specific developmental language disorder (see: Language disorders in children)(Condition)
 - Specific learning disorder with impairment in written expression (see: Dysgraphia)(Condition)
 - Speech and language disorder - dysarthria care (see: Communicating with someone with dysarthria)(Self-Care)
 - Speech disfluency (see: Stuttering)(Condition)
 - Speech disorder - phonological (see: Phonological disorder)(Condition)
 - Speech disorder - stuttering (see: Speech disorders - children)(Condition)
 - (Condition)
 - Speech distortion (see: Phonological disorder)(Condition)
 - Speech sound disorder (see: Phonological disorder)(Condition)
 - Spell - newborns (see: Apnea of prematurity)(Condition)
 - Spherocytosis (see: Hereditary spherocytic anemia)(Condition)
 - Spider bite (see: Insect bites and stings)(Injury)
 - Spider fingers (see: Arachnodactyly)(Symptoms)
 - Spina bifida repair (see: Meningocele repair)(Surgery)
 - Spinal cord injury (see: Spinal injury)(Injury)
 - Spinal cord injury, SCI (see: Spinal injury)(Injury)
 - Spinal curvature (see: Scoliosis)(Condition)
 - Spinal curvature - InDepth (see: Scoliosis - InDepth)(In-Depth)
 - Spinal dysraphism repair (see: Meningocele repair)(Surgery)
 - Spinal fluid culture (see: Cerebrospinal fluid (CSF) culture)(Medical Test)
 - (Injury)
 - (Condition)
 - Spinal tap (see: Cerebrospinal fluid (CSF) collection)(Medical Test)
 - (Self-Care)
 - (Surgery)
 - Spleen removal - laparoscopic (see: Spleen removal)(Surgery)
 - Splenectomy (see: Spleen removal)(Surgery)
 - Spontaneous pneumothorax (see: Collapsed lung (pneumothorax))(Condition)
 - Sporadic primary pulmonary hypertension (see: Pulmonary hypertension)(Condition)
 - (Special Topic)
 - Spousal abuse (see: Domestic violence)(Special Topic)
 - (Injury)
 - (Alt. Medicine)
 - Sprue (see: Celiac disease – sprue)(Condition)
 
Sq
- Squint (see: Strabismus)(Condition)
 
Sr
- SRS (see: Silver-Russell syndrome)(Condition)
 
Ss
- SSS (see: Scalded skin syndrome)(Condition)
 
St
- Stammering (see: Speech disorders - children)(Condition)
 - Stammering (see: Stuttering)(Condition)
 - Stapedectomy (see: Otosclerosis)(Condition)
 - Staph - impetigo (see: Impetigo)(Condition)
 - (Condition)
 - Staphylococcal scalded skin syndrome (see: Scalded skin syndrome)(Condition)
 - Staphylococcal scalded skin syndrome (SSS) (see: Scalded skin syndrome)(Condition)
 - Staphylococcus - cellulitis (see: Cellulitis)(Condition)
 - Staphylococcus - impetigo (see: Impetigo)(Condition)
 - Startle reflex (see: Moro reflex)(Symptoms)
 - Startle response (see: Moro reflex)(Symptoms)
 - Stem cell transplant (see: Bone marrow transplant)(Surgery)
 - Stem cell transplant - discharge (see: Bone marrow transplant - discharge)(Discharge)
 - Stenosis - pulmonary valve (see: Pulmonic valve stenosis)(Condition)
 - (Condition)
 - Sternal tap (see: Bone marrow aspiration)(Medical Test)
 - Sternutation (see: Sneezing)(Symptoms)
 - Still disease (see: Juvenile idiopathic arthritis)(Condition)
 - Still's disease (see: Juvenile idiopathic arthritis)(Condition)
 - Stoma - what to ask your doctor (see: Ileostomy - what to ask your doctor )(Doctor Questions)
 - Stomach flu (see: Viral gastroenteritis (stomach flu))(Condition)
 - Stomach flu - dehydration (see: Dehydration)(Condition)
 - Stomach pain (see: Abdominal pain)(Symptoms)
 - Stomachache (see: Abdominal pain)(Symptoms)
 - Stomatitis – herpetic (see: Herpetic stomatitis)(Condition)
 - Stomatitis - herpetic (see: Herpetic stomatitis)(Condition)
 - Stools - black or tarry (see: Black or tarry stools)(Symptoms)
 - Stools - bloody (see: Black or tarry stools)(Symptoms)
 - Stools - watery (see: Diarrhea)(Symptoms)
 - (Condition)
 - (Condition)
 - (Injury)
 - Strangulation (see: Hernia)(Condition)
 - Strawberry mark (see: Red birthmarks)(Condition)
 - Strawberry nevus (see: Hemangioma)(Condition)
 - Strep - impetigo (see: Impetigo)(Condition)
 - Strep infection - scarlet fever (see: Scarlet fever)(Condition)
 - (Condition)
 - Strep throat - InDepth (see: Colds and the flu - InDepth)(In-Depth)
 - Strep throat - rheumatic fever (see: Rheumatic fever)(Condition)
 - Streptococcal pharyngitis (see: Strep throat)(Condition)
 - Streptococcal proctitis (see: Perianal streptococcal cellulitis)(Condition)
 - Streptococcus - impetigo (see: Impetigo)(Condition)
 - Streptococcus - rheumatic fever (see: Rheumatic fever)(Condition)
 - Streptococcus - scarlet fever (see: Scarlet fever)(Condition)
 - Streptococcus pyogenes - rheumatic fever (see: Rheumatic fever)(Condition)
 - (In-Depth)
 - Stress fracture (see: Broken bone)(Injury)
 - (Special Topic)
 - (Symptoms)
 - Strip craniectomy (see: Craniosynostosis repair)(Surgery)
 - (Symptoms)
 - (Condition)
 - Stye (see: Eyelid bump)(Condition)
 
Su
- Substance abuse - teenagers (see: Teenagers and drugs)(Special Topic)
 - Substance abuse-teenages: (see: Teenagers and drugs)(Special Topic)
 - Substance use disorder - infant (see: Infant of a substance-using mother)(Special Topic)
 - Subungual warts (see: Warts)(Condition)
 - (Condition)
 - (Condition)
 - (Symptoms)
 - Sunken chest (see: Pectus excavatum)(Symptoms)
 - Sunken fontanelles (see: Fontanelles - sunken)(Symptoms)
 - (Symptoms)
 - Supraglottitis (see: Epiglottitis)(Condition)
 - Surface echo (see: Echocardiogram)(Medical Test)
 - Surgery - appendectomy (see: Appendectomy)(Surgery)
 - Surgical drain (see: Closed suction drain with bulb)(Self-Care)
 - Surgical drain (see: Hemovac drain)(Self-Care)
 - Surgical incision care (see: Surgical wound care - open)(Self-Care)
 - Surgical nail avlusion (see: Ingrown toenail)(Condition)
 - Surgical nail avulsion (see: Ingrown toenail)(Condition)
 - (Self-Care)
 - (Default)
 - Sustained virologic response - hepatitis C (see: Hepatitis C)(Condition)
 - Sutures - cranial (see: Cranial sutures)(Special Topic)
 - (Symptoms)
 - (Symptoms)
 
Sv
- SVR - hepatitis C (see: Hepatitis C)(Condition)
 
Sw
- Swallowing - pain or burning (see: Painful swallowing)(Symptoms)
 - Swallowing problems - achalasia (see: Achalasia)(Condition)
 - Swallowing problems - esophageal ring (see: Lower esophageal ring)(Condition)
 - Swallowing problems for liquids and solids (see: Achalasia)(Condition)
 - (Medical Test)
 - Swayback (see: Lordosis - lumbar)(Symptoms)
 - Sweat - cold (see: Skin - clammy)(Symptoms)
 - Sweat chloride (see: Sweat electrolytes test)(Medical Test)
 - (Medical Test)
 - Sweat test (see: Sweat electrolytes test)(Medical Test)
 - Swelling in the abdomen (see: Abdomen - swollen)(Symptoms)
 - (Condition)
 - Swine flu (see: H1N1 influenza (Swine flu))(Condition)
 - Swine flu (H1N1) - what to ask your doctor - child (see: Colds and the flu - what to ask your doctor - child)(Doctor Questions)
 - Swollen belly (see: Abdomen - swollen)(Symptoms)
 - Swollen glands (see: Swollen lymph nodes)(Symptoms)
 - Swollen gums (see: Gums - swollen)(Symptoms)
 - (Symptoms)
 
Sy
- Symptoms of drug use in teenagers (see: Teenagers and drugs)(Special Topic)
 - Syncope (see: Fainting)(Symptoms)
 - Syndactyly (see: Webbing of the fingers or toes)(Symptoms)
 - Syndactyly release (see: Repair of webbed fingers or toes)(Surgery)
 - Syndactyly repair (see: Repair of webbed fingers or toes)(Surgery)
 - Synostectomy (see: Craniosynostosis repair)(Surgery)
 - Synostosis (see: Craniosynostosis)(Condition)
 - (Condition)
 - Systemic necrotizing vasculitis (see: Polyarteritis nodosa)(Condition)
 - Systolic heart murmur (see: Heart murmurs)(Symptoms)
 



