Kidney Cancer Institute explains simple kidney cysts do not pose a cancer risk to patients, whereas complex kidney cysts have different characteristics that may make them cancerous. A simple kidney cyst is spherical, is ... More » Health Conditions & Diseases

A complex cyst has both fluid-filled and solid parts. While a simple cyst only has fluid inside it and is usually not cancerous, a complex cyst can be cancerous. After diagnosticians find a complex mass, they take a samp... More » Health Conditions & Diseases

Some symptoms of a complex kidney cyst include abdominal and flank pain, a palpable growth and hematuria. These symptoms may manifest when a complex renal cyst arises from a simple kidney cyst due to complications or enl... More »

The cause of kidney cysts is not clear, but medical professionals theorize that the cysts develop when the kidney's surface layer forms a pouch and weakens, according to Mayo Clinic. Cysts develop when the pouch fills wi... More »

As of 2014, the causes of kidney cysts are unclear, according to WebMD. These cysts do not appear to have a genetic component. Males are more prone to kidney cysts than females, and these cysts are extremely common in pe... More » Health Conditions & Diseases

According to WebMD, kidney cysts are closed pockets filled with fluid or tissue. They can become infected or start bleeding, in which case they are called hemorrhagic. They can also increase in size and become painful wh... More »

According to the Center for Specialized Gynecology, pelvic cysts are fluid-filled pockets that form in the pelvic region, most often on the ovaries. Symptoms of pelvic and ovarian cysts include irregular menstrual cycles... More »