
Down syndrome - Symptoms and causes - Mayo Clinic
Nov 12, 2024 · Down syndrome is a genetic condition caused when an unusual cell division results in an extra full or partial copy of chromosome 21. This extra genetic material causes …
Sjogren's syndrome - Symptoms and causes - Mayo Clinic
Aug 2, 2022 · Sjogren's (SHOW-grins) syndrome is a disorder of your immune system identified by its two most common symptoms — dry eyes and a dry mouth. The condition often …
Ehlers-Danlos syndrome - Symptoms and causes - Mayo Clinic
Aug 25, 2022 · Ehlers-Danlos syndrome is a group of inherited disorders that affect your connective tissues — primarily your skin, joints and blood vessel walls. Connective tissue is a …
Stiff Person Syndrome Clinic - Overview - Mayo Clinic
Nov 8, 2025 · The Stiff Person Syndrome Clinic brings together medical experts in neurological conditions and advanced diagnostic testing to arrive at the right diagnosis and a course of …
Stevens-Johnson syndrome - Symptoms & causes - Mayo Clinic
Apr 30, 2025 · Stevens-Johnson syndrome (SJS) is a rare, serious disorder of the skin and mucous membranes. It's usually a reaction to medication that starts with flu-like symptoms, …
Serotonin syndrome - Symptoms & causes - Mayo Clinic
Sep 12, 2024 · Serotonin syndrome can occur when you increase the dose of certain medications or start taking a new drug. It's most often caused by combining medications that contain …
Guillain-Barre syndrome - Symptoms and causes - Mayo Clinic
Jun 7, 2024 · Guillain-Barre syndrome is a serious condition that requires immediate hospitalization because it can worsen quickly. The sooner treatment is started, the better the …
DiGeorge syndrome (22q11.2 deletion syndrome) - Mayo Clinic
Jan 13, 2024 · DiGeorge syndrome, also known as 22q11.2 deletion syndrome, is a condition caused when a small part of chromosome 22 is missing. This deletion causes several body …
Bardet-Biedl syndrome (BBS) - Symptoms and causes - Mayo Clinic
Overview Bardet-Biedl (BAR-day, BEE-dul) syndrome, also called BBS, is a rare condition caused by changes in genes. BBS can affect almost any part of the body. Starting in early childhood, …
Tourette syndrome - Symptoms and causes - Mayo Clinic
Aug 8, 2018 · Tourette (too-RET) syndrome is a disorder that involves repetitive movements or unwanted sounds (tics) that can't be easily controlled. For instance, you might repeatedly blink …