Browse a comprehensive list of medical diseases and conditions that start with the letter S from the experts at Mayo Clinic.

Apr 24, 2025 · Alzheimer's treatments now being studied include an Alzheimer's vaccine and several new medicines.

May 9, 2025 · Alzheimer's disease can last more than a decade. See what types of behaviors are common in each of the stages as the disease progresses. Alzheimer's disease tends to …

4 days ago · Parkinson's disease is a movement disorder of the nervous system that worsens over time. The nervous system is a network of nerve cells that controls many parts of the …

Oct 29, 2024 · Crohn's disease can be both painful and debilitating. Sometimes, it may lead to serious or life-threatening complications. There's no known cure for Crohn's disease, but …

Apr 25, 2024 · Huntington's disease often causes trouble with cognitive skills. These symptoms may include: Trouble organizing, prioritizing or focusing on tasks. Lack of flexibility or getting …

Apr 30, 2025 · Hashimoto's disease is an autoimmune disorder affecting the thyroid gland. The thyroid is a butterfly-shaped gland located at the base of the neck just below the Adam's …

Aug 6, 2025 · Overview Peyronie's (pay-roe-NEEZ) disease is a condition in which fibrous scar tissue forms in the deeper tissues under the skin of the penis. This causes curved, painful …

Mar 13, 2024 · Alzheimer's disease first affects the part of the brain associated with learning, so early symptoms often include changes in memory, thinking and reasoning skills. As the …

Jan 3, 2024 · Overview Meniere's disease is an inner ear problem that can cause dizzy spells, also called vertigo, and hearing loss. Most of the time, Meniere's disease affects only one ear. …