Danger

Allergies are extremely common, but they are often misunderstood. A harmless substance such as pollen, dust, food, or animal dander can trigger a surprisingly strong reaction in someone whose immune…

Syphilis is a sexually transmitted infection caused by the bacterium Treponema pallidum. It has affected humans for centuries, but modern medicine can diagnose and treat it effectively. What makes syphilis…

Mosquito bites are one of the most common warm-weather annoyances. For most people, they cause a small red bump, itching, and mild swelling that disappear within a few days. The…

Acute pancreatitis is a sudden inflammation of the pancreas that can range from mild and short-lived to severe and life-threatening. The pancreas is a small organ behind the stomach, but…

Liver cirrhosis is a serious chronic condition in which healthy liver tissue is replaced by scar tissue. Over time, this scarring makes it harder for the liver to filter blood,…