Kidney

"The kidneys are a pair of organs located in the back of the abdomen. Each kidney is about 4 or 5 inches long -- about the size of a fist. The kidneys' function are to filter the blood. All the blood in our bodies passes through the kidneys several times a day. The kidneys remove wastes, control the body's fluid balance, and regulate the balance of electrolytes. As the kidneys filter blood, they create urine, which collects in the kidneys' pelvis -- funnel-shaped structures that drain down tubes called ureters to the bladder. Each kidney contains around a million units called nephrons, each of which is a microscopic filter for blood. It's possible to lose as much as 90% of kidney function without experiencing any symptoms or problems."

Hematuria

Hematuria, or haematuria, is the presence of red blood cells (erythrocytes) in the urine. It may be idiopathic and/or benign, or it can be a sign that there is a .....

Nephrotic syndrome

Nephrotic syndrome is a set of signs or symptoms that may point to kidney problems. The kidneys are two bean-shaped organs found in the lower back. Each is about the .....

Bartter syndrome

Bartter syndrome refers to a group of rare conditions that affect the kidneys. There are five gene defects known to be associated with Bartter syndrome. The condition is present from .....

Renal colic

Renal colic is a type of pain caused by kidney stones. Kidney stones are crystals that form from chemicals in the urine. Usually, a stone develops because too much of .....

Kidney failure

kidney failure or renal insufficiency is a medical condition in which the kidneys fail to adequately filter waste products from the blood. The two main forms are acute kidney injury, .....

Cystinuria

Cystinuria is a condition passed down through families in which stones made from an amino acid called cystine form in the kidney, ureter, and bladder. To have the symptoms of .....

ADH Secretion syndrome

The syndrome of inappropriate antidiuretic hormone secretion is characterized by excessive release of antidiuretic hormone from the posterior pituitary gland or another source. The result is hyponatremia and sometimes fluid .....