4153 results found
Health topics
… a type of cancer that begins in the lymph system in white blood cells called lymphocytes. When these cells become abnormal, they don't protect the body from infection or disease. They also grow without control and may form lumps …
Health topics
… Treatment Overview Phlebotomy is a procedure that removes blood from the body. Regular phlebotomy treats people who … hemochromatosis , or who are producing too many red blood cells, such as with polycythemia . Removing blood regularly … by the American Association for the Study of Liver Diseases. Hepatology , 54(1): 328–343. Current as …
Medical tests
… pericardium . It protects the heart and parts of the major blood vessels connected to the heart. Normally, there is a … other structures in the chest when the heart beats. Some diseases cause fluid to collect within the pericardium. This … (such as bacteria, fungi , or viruses), white blood cells , sugar (glucose), cancer cells, and other substances. …
Medical tests
… Test Overview A genetic test checks the DNA of your cells. It can find changes in your genes or chromosomes that … about your ancestry, your health, or your risk for certain diseases. Testing can be done on a single gene, selected … from each birth parent. Genes determine things like your blood type, hair colour, and eye colour. Genes can also …
Health topics
… of simple prostatectomy include: The possible need for a blood transfusion. Ejaculation of semen into the bladder … of simple prostatectomy include: The possible need for a blood transfusion. Ejaculation of semen into the bladder …
Health topics
… who have severe ulcerative colitis may have: More than six bloody stools a day (loose stools). Fever, rapid heartbeat, … An expanded colon (as seen on an X-ray). A need for blood transfusions. Flare-ups can be so severe that they …
Medical tests
… of immunoglobulins, also known as antibodies , in your blood. Antibodies are substances made by the body's immune … to bacteria, viruses, fungus, animal dander, or cancer cells. Antibodies attach to the foreign substances so the … made against your own tissues. This is called an autoimmune disease . If your immune system makes low levels of …
Medical tests
… test measures the amount and pattern of antibodies in your blood that work against your own body (autoimmune reaction). … bacteria and viruses. But in disorders known as autoimmune diseases, the immune system attacks and destroys the body's … system produces antibodies that attach to the body's own cells as though they were foreign substances, often causing …
Health topics
… erythematosus, or SLE) from other autoimmune and rheumatic diseases. A person with 4 of these 11 conditions can be … in urine, such as increased protein or clumps of red blood cells or kidney cells, called cell casts Nervous system …
Health topics
… Overview What is diabetic retinopathy? Retinopathy is a disease of the retina . The retina is the nerve layer that … of the time, it gets worse over many years. At first, the blood vessels in the eye get weak. This can lead to blood … some loss of vision, because it destroys some of the nerve cells in the retina and can cause the abnormal blood vessels …
