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 …

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 …

Nov 8, 2025 · Get care from experts in stiff person syndrome, also called SPS, a disorder that causes worsening muscle rigidity and spasms over time.

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 …

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, …

Living with Bardet-Biedl syndrome can be a challenge for people with BBS and their families. Sharing your feelings with trusted family and friends or with healthcare professionals can help.

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 …

Oct 11, 2024 · Formerly referred to as stiff man syndrome, SPS is a progressive condition that impacts the nervous system — the network the brain and spinal cord use to send messages …

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, …

Jun 7, 2023 · Too much cortisol can cause some of the main symptoms of Cushing syndrome — a fatty hump between the shoulders, a rounded face, and pink or purple stretch marks on the …