Nutrition basics
Learning Center
Blood in semen
Finding blood in your semen can be alarming, but the cause is usually benign. Find out possible causes and when to see a doctor.
Bent penis
Learn what can cause a curved erection and when you may need to see a health care provider.
Mammogram guidelines: What are they?
Latest Mayo Clinic mammogram guidelines for breast cancer screening.
Is a home sperm test useful?
Using a home sperm test to check your fertility may not provide a clear answer.
Alzheimer's disease
Understand more about this brain disorder that's the most common cause of dementia. Also learn about new tests and medicines on the market.
Arteriosclerosis / atherosclerosis
Learn about the symptoms, causes and treatments for hardening of the arteries.
Marfan syndrome
This inherited disorder affects the skeleton and the eyes. It can also harm the large blood vessel that carries blood from the heart to the rest of the body.
C. difficile infection
Learn more about this diarrhea-causing infection that often occurs after antibiotic use. Many, but not all, people who get it are in health care facilities.
Acute coronary syndrome
Know the symptoms, causes and treatment of this heart condition. The term refers to many conditions that cause sudden, low blood flow to the heart.
Craniopharyngioma
Learn more about this noncancerous tumor that forms near the brain's pituitary gland, including diagnosis and treatment options.
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