a condition in which clusters of cysts grow in the body, mainly in the kidneys. Over time, the cysts may cause the kidneys to get bigger and stop working. PKD is most often passed through families. This is called an inherited condition.Cysts are round sacs with fluid in them. They are not cancer. In PKD, the cysts vary in size. They can grow very large. Having many cysts or large cysts can damage the kidneys. Polycystic kidney disease also can cause cysts to grow in the liver, the pancreas and other places in the body. The disease can cause serious complications, including high blood pressure and kidney failure. PKD varies greatly in how bad it is. It's possible to prevent some complications. Lifestyle changes and treatments might help reduce damage to the kidneys. Symptoms :Polycystic kidney disease symptoms can include)High blood pressure-Belly, side or back pain-Blood in the urine-A feeling of fullness in the belly-Increased size of the belly from enlarged kidneys-Headaches-Kidney stones-Kidney failure-Urinary tract or kidney infections. Diagnosis For polycystic kidney disease, certain tests can detect the size and number of kidney cysts you have. Tests also can show how much healthy kidney tissue you have. Tests include:MRI scan. As you lie inside a large cylinder, magnetic fields and radio waves show views of your kidneys. This method most often is used to know how badly PKD affects the kidneys, liver or pancreas. MRI can help measure total kidney volume, which helps healthcare professionals know more about your condition.Ultrasound. This involves putting a wand like device called a transducer on your body. It gives off sound waves that go back to the transducer. A computer turns the sound waves into images of your kidneys. CT scan. You lie on a table that goes into a big, doughnut-shaped device. The device uses X-ray beams to show images of your kidneys. Al-Mustaqbal University the first in Iraq