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What is heart disease? Heart disease is a general term that includes many types of heart problems. It's also called cardiovascular disease, which means ...
What is heart failure? Heart failure means that your heart can't pump enough oxygen-rich blood to meet your body's needs. Heart failure doesn't mean that ...
Heart diseases are the number one killer in the United States. They are also a major cause of disability. If you do have heart disease, it is important to ...
What is heart surgery? Heart surgery can correct certain heart problems when other treatments haven't worked or can't be used. In some cases, heart surgery ...
What are heart valve diseases? Heart valve disease happens when one or more of your heart valves don't work well. Your heart has four valves: the tricuspid, ...
Helicobacter pylori (H. pylori) is a type of bacteria that causes infection in the stomach. It is the main cause of peptic ulcers, and it can also cause gastritis ...
What is hemophilia? Hemophilia is a rare bleeding disorder in which the blood does not clot properly. This can lead to problems with bleeding too much ...
What are hemorrhoids? Hemorrhoids are swollen, inflamed veins around your anus or the lower part of your rectum. There are two types: External hemorrhoids, ...
What is hepatitis? Hepatitis is inflammation of the liver. Inflammation is swelling that happens when tissues of the body are injured or infected. It ...
What is hepatitis? Hepatitis is inflammation of the liver. Inflammation is swelling that happens when tissues of the body are injured or infected. It ...
What is hepatitis C? Hepatitis is inflammation of the liver. Inflammation is swelling that happens when tissues of the body are injured or infected. Inflammation ...
A hernia happens when part of an internal organ or tissue bulges through a weak area of muscle. Most hernias are in the abdomen. There are several types ...
What is heroin? Heroin is an illegal, very addictive opioid drug. It's made from morphine, which comes from the seedpod of opium poppy plants. These plants ...
A hiatal hernia is a condition in which the upper part of your stomach bulges through an opening in your diaphragm. Your diaphragm is the thin muscle that ...
What are hiccups? Have you ever wondered what is happening when you hiccup? There are two parts to a hiccup. The first is an involuntary movement of your ...
What is hidradenitis suppurativa (HS)? Hidradenitis suppurativa (HS) is a chronic skin disease. Another name for it is acne inversa. It causes painful, ...
What is blood pressure? Blood pressure is the force of your blood pushing against the walls of your arteries. Each time your heart beats, it pumps blood ...
What is high blood pressure in pregnancy? Blood pressure is the force of your blood pushing against the walls of your arteries. Your arteries are blood ...
What is cholesterol? Cholesterol is a waxy, fat-like substance that's found in all the cells in the body. The liver makes cholesterol, and it is also ...
Your hip is the joint where your femur (thigh bone) meets your pelvis (hip bone). There are two main parts: a ball at the end of the femur, which fits in a ...
