Dec 10, 2022 · Overview Hypothyroidism happens when the thyroid gland doesn't make enough thyroid hormone. This condition also is called underactive thyroid. Hypothyroidism may not cause noticeable …

Jul 6, 2024 · Cigars aren't safer than cigarettes. Like cigarettes, cigars contain nicotine, tobacco and cancer-causing chemicals.

Jan 14, 2021 · Entropion (en-TROH-pee-on) is a condition in which your eyelid turns inward so that your eyelashes and skin rub against the eye surface. This causes irritation and discomfort. When you …

Jan 17, 2025 · General anesthesia brings on a sleep-like state with the use of a combination of medicines. The medicines, known as anesthetics, are given before and during surgery or other …

Jul 31, 2024 · The lining of the tubes that carry air to and from your lungs is inflamed. Signs and symptoms include cough, mucus, fatigue and chest discomfort.

Aug 22, 2025 · Overview Myasthenia gravis is a condition that happens when communication between nerves and muscles breaks down. This causes muscles to feel weak and get tired quickly. This …

Hematology — Learn about innovative diagnosis and treatment options for blood diseases, including cancers, at Mayo Clinic.

Overview Clostridioides difficile (klos-TRID-e-oi-deez dif-uh-SEEL) is a bacterium that causes an infection of the colon, the longest part of the large intestine. Symptoms can range from diarrhea to …

Apr 9, 2025 · Rheumatoid arthritis is an ongoing, called chronic, condition that causes pain, swelling and irritation, called inflammation, in the joints. But it also can damage other parts of the body. These …

Mar 7, 2026 · This is the most common type of tumor that forms in the head and may affect the brain. Find out about symptoms, diagnosis and treatment.