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Systemic lupus erythematosus (SLE)  — Research Starter

Systemic lupus erythematosus (SLE) is a chronic, inflammatory autoimmune disease where the immune system mistakenly attacks the body’s own tissues, potentially affecting any organ or body system.…

Syphilis  — Research Starter

Syphilis is a sexually transmitted disease caused by the spirochete bacterium Treponema pallidum. It can progress from a localized genital lesion, known as a chancre, to a more severe systemic…

Synesthesia  — Research Starter

Synesthesia is a neurological phenomenon where stimulation of one sensory pathway leads to involuntary experiences in another, such as perceiving colors upon hearing music or seeing letters. The term…

Syndrome  — Research Starter

A syndrome is a collection of recognizable symptoms or conditions that occur together, indicating a specific disease, psychological disorder, or other abnormal states. These groupings can manifest…

Sudden infant death syndrome (SIDS)  — Research Starter

Sudden Infant Death Syndrome (SIDS) is a tragic and unexplained phenomenon characterized by the abrupt death of an otherwise healthy infant, typically during sleep, and primarily affecting those…

Subdural hematoma  — Research Starter

A subdural hematoma is a collection of blood that forms in the subdural space, typically resulting from head injuries but sometimes occurring without any apparent trauma. It is categorized into acute…

Styes  — Research Starter

A stye, also known as an external hordeolum, is an inflammation of the hair follicles or glands of the eyelids, typically caused by a bacterial infection, most commonly from Staphylococcus aureus.…

Stuttering  — Research Starter

Stuttering is a speech disorder characterized by disruptions in the smooth flow of speech, often identified in children as they develop language skills around three years of age. It manifests through…

Sturge-Weber syndrome  — Research Starter

Sturge-Weber syndrome is a rare neurological disorder characterized by vascular malformations, primarily affecting the brain and skin. It is associated with a distinct facial birthmark known as a…