Conditions beginning with the letter "S"

  | SAD (Seasonal Affective Disorder) |
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  | SARS (Severe Acute Respiratory Syndrome, Atypical Pneumonia) |
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  | Scabies (Mite Infestation, Body Lice) |
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  | Schizophrenia (Psychosis, Psychotic Disorders) |
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  | Sciatica |
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  | Scleroderma (Systemic Sclerosis, Morphea) |
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  | Scoliosis (Spine Curvature, Spinal Curvature) |
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  | Seasickness (Motion Sickness, Travel Sickness) |
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  | Seasonal Affective Disorder (SAD) |
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  | Secondary Polycythemia (Polycythemia, Polycythemia Vera, Primary Polycythemia) |
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  | Senile Dementia (Alzheimer's Disease) |
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  | Senile Dementia (Dementia, Chronic Brain Syndrome, Organic Brain Syndrome) |
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  | Seventh Nerve Palsy (Bell's Palsy, Facial Paralysis, 7th Nerve Palsy) |
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  | Severe Acute Respiratory Syndrome (SARS, Atypical Pneumonia) |
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  | Sexual Dissatisfaction in Women (Female Sexual Dysfunction, Low Libido in Women, Decreased Sex Drive - Female, Lack of Sexual Desire in Women) |
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  | Sexually Transmitted Disease (Sexually Transmitted Infection, STI, STD) |
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  | Sexually Transmitted Infection (STI, Sexually Transmitted Disease, STD) |
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  | Shaking Palsy (Parkinson's Disease) |
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  | Shingles (Herpes Zoster, Varicella-Zoster) |
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  | Sickle Cell Anemia (Hemoglobin S Disease, Sickle Cell Disease) |
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  | Sickle Cell Disease (Sickle Cell Anemia, Hemoglobin S Disease) |
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  | Sinus Headache (Headaches, Tension Headache, Migraine, Cluster Headache) |
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  | Sinus Infection (Sinusitis) |
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  | Sinusitis (Sinus Infection) |
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  | Siriasis (Heat Stroke, Sunstroke, Heat Exhaustion, Thermic Fever) |
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  | Sjögren's Syndrome |
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  | Skin Burns (Burns) |
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  | Skin Cancer (Basal Cell Cancer, Squamous Cell Cancer, Superficial Basal Cell Carcinoma, Non-Melanoma Skin Cancer) |
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  | Skin Cancer (Melanoma, Cancer of the Skin, Skin Tumour) |
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  | Skin Discoloration (Vitiligo, Depigmentation, Loss of Skin Pigmentation, Skin Discolouring) |
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  | Skin Discolouring (Vitiligo, Depigmentation, Loss of Skin Pigmentation, Skin Discoloration) |
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  | Skin Tumour (Melanoma, Skin Cancer, Cancer of the Skin) |
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  | Slapped-cheek Disease (Fifth Disease, Human Parvovirus B19, Erythema Infectiosum) |
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  | SLE (Lupus, Systemic Lupus Erythematosus) |
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  | Sleep Apnea |
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  | Sleep Disorder (Insomnia, Trouble Sleeping, Sleep Problems) |
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  | Sleep Problems (Insomnia, Sleep Disorder, Trouble Sleeping) |
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  | Slipped Disc (Herniated Disc, Prolapsed Disc, Ruptured Disc) |
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  | Smallpox (Variola) |
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  | Smoking Cessation (Stopping Smoking, Quitting Smoking) |
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  | Solar Erythema (Sunburn, Excess Sun) |
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  | Solar Keratosis (Actinic Keratosis, Precancerous Skin Lesion) |
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  | Sore Throat (Tonsillitis, Tonsilitis) |
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  | Spastic Bowel (Irritable Bowel Syndrome, IBS, Functional Bowel Disorder, Spastic Colon) |
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  | Spastic Colon (Irritable Bowel Syndrome, IBS, Functional Bowel Disorder, Spastic Bowel) |
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  | Spider Bites |
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  | Spiderweb Veins (Varicose Veins, Leg Veins, Bulging Veins) |
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  | Spina Bifida (Spinal Cord Conditions, Birth Defects) |
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  | Spinal Cord Conditions (Spina Bifida, Birth Defects) |
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  | Spinal Curvature (Scoliosis, Spine Curvature) |
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  | Spine Curvature (Scoliosis, Spinal Curvature) |
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  | Spinning (Vertigo, Dizziness) |
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  | Sports Injuries (Athletic Injuries) |
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  | Squamous Cell Cancer (Skin Cancer, Basal Cell Cancer, Superficial Basal Cell Carcinoma, Non-Melanoma Skin Cancer) |
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  | STD (Sexually Transmitted Infection, STI, Sexually Transmitted Disease) |
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  | Stein-Leventhal syndrome (Polycystic Ovary Syndrome, PCOS, Chronic Hyperandrogenic Anovulation (CHA)) |
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  | STI (Sexually Transmitted Infection, Sexually Transmitted Disease, STD) |
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  | Stomach Cancer (Gastric Cancer) |
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  | Stomach Flu (Gastroenteritis, Norwalk Virus, Norovirus) |
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  | Stomach Ulcers (Peptic Ulcer Disease, Ulcers, Gastric Ulcers, Duodenal Ulcers) |
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  | Stopping Smoking (Smoking Cessation, Quitting Smoking) |
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  | Strep (Strep Throat, Throat Infection, Streptococcal Pharyngitis) |
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  | Strep Throat (Throat Infection, Strep, Streptococcal Pharyngitis) |
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  | Streptococcal Pharyngitis (Strep Throat, Throat Infection, Strep) |
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  | Stroke (Cerebrovascular Accident, Ischemic Stroke, Hemorrhagic Stroke) |
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  | Styes (Hordeolum) |
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  | Substance Use Problems (Drug Abuse, Addiction) |
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  | Sudden Infant Death Syndrome |
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  | Suicide |
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  | Sunburn (Excess Sun, Solar Erythema) |
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  | Sunstroke (Heat Stroke, Heat Exhaustion, Thermic Fever, Siriasis) |
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  | Superficial Basal Cell Carcinoma (Skin Cancer, Basal Cell Cancer, Squamous Cell Cancer, Non-Melanoma Skin Cancer) |
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  | Swimmer's Ear |
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  | Swine Flu (H1N1 Influenza, H1N1 Flu Virus, Influenza A (H1N1), Human Swine Flu) |
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  | Syndrome X (Metabolic Syndrome, Insulin Resistance Syndrome) |
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  | Syphilis (Venereal disease, VD) |
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  | Systemic Lupus Erythematosus (Lupus, SLE) |
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  | Systemic Sclerosis (Scleroderma, Morphea) |
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