Bed bugs have resurged in recent decades after being far less common for much of the twentieth century. While infestations today are still manageable, dealing with bed bugs can be difficult and often ...

Lupus is a long-term autoimmune condition that causes the body’s immune system to attack healthy tissue. It can affect almost any part of the body, from joints and skin to internal organs like the ...

Primary bone cancer is rare, making up about 0.2 to 0.3 percent of all cancers, according to the American Society of Clinical Oncology. The cause is not fully understood, though hereditary factors may ...

Kidney failure, or end-stage renal disease (ESRD), occurs when the kidneys can no longer filter waste effectively. At this stage, kidney function drops below 10% of normal, leading to dangerous toxin ...

A cardiac ablation is a procedure performed by an interventional cardiologist to treat irregular heartbeats. Using long, flexible wires called catheters, the doctor threads the instruments through a ...

Many disorders can affect the digestive system. Some are physiological, while others are physical conditions with a strong psychological component. Rumination syndrome is one of the latter. People ...

Lymphoma is a cancer that originates in the lymphatic system, a vital part of the body’s immune defenses. This system includes lymph nodes, vessels, and tissues found in the bone marrow, spleen, ...

Ammonia is a chemical that both occurs naturally and can be created. It is a colorless gas — one part nitrogen and three parts hydrogen — with a foul smell that most people easily recognize.

Presbycusis is the medical term for age-related hearing loss. It is a common condition that affects roughly one-third of Americans between the ages of 65 and 74. This number jumps to approximately 50 ...

Prions are pathologic agents that produce abnormal folding in the brain. These changes cause rapidly progressive neurological diseases that are difficult to treat and always fatal. Prions can be ...

Nabothian cysts are tiny growths that form on a woman's cervix. They are also known as cervical cysts, mucinous retention cysts, or epithelial cysts. The cervix or cervical canal connects the vagina ...

Peripheral neuropathy is a broad term for any condition that damages the peripheral nerves that transfer sensory information and carry signals from the central nervous system in the brain and spinal ...