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Detailed information on animal bites and how to respond to them.

Detailed information on emerging infectious diseases and how travelers can reduce their risk of infectious diseases.

Taking one or a mix of painkiller medicines daily over a long time may cause chronic kidney problems. This is called analgesic nephropathy. Painkillers that combine two or more medicines (such as, aspirin and acetaminophen together) with caffeine or codeine are the most likely to harm the kidneys.

A cerebral aneurysm is a bulge in a weak area of the wall of a brain artery. Learn about this condition, including cause, risk factors, symptoms, diagnosis, and treatment.

A pregnancy is divided into 3 phases, called trimesters. Each trimester has its own major milestones.

Hyperparathyroidism occurs when 1 or more of your parathyroid glands are overactive. You have 4 of these tiny glands. Each 1 is about the size of a grain of rice. They are found in your neck, next to the thyroid gland. They keep the amount of calcium in your blood in a normal range. If these glands are overactive, they make too much parathyroid hormone (PTH). That raises the level of calcium in your blood.

Celiac disease is a long-term digestive problem that hurts your small intestine. You may have celiac disease if you are allergic to gluten.

Gastroparesis is a disorder involving your stomach muscles. Learn more about this condition, including cause, risk factors, symptoms, diagnosis, and treatment.

Helicobacter pylori (H. pylori) is a type of bacteria that infects your stomach. Learn more about this infection, including cause, risk factors, symptoms, diagnosis, and treatment.