Your kidneys are two bean-shaped organs that lie just below your rib cage, on each side of your spine. They remove waste from your blood and make urine to send it out through your bladder and urethra to empty out out of your body. Kidneys are vital to your overall health as they produce hormones and control your blood pressure and blood volume through regulating salt and water in your bloodstream. A healthy kidney generally measures 5 inches long when laid out flat on its side with two-thirds of its length being on the right side and another third on the left side evenly split down the middle. 

When someone’s kidneys stop working we call this kidney failure. Damage to the kidneys usually happens over time. Usually it is caused by other illnesses, such as diabetes or high blood pressure and kidney damage can take a long time to develop before you notice any symptoms other than feeling unwell in general* and sometimes putting on weight (if you are drinking lots of fluid) or being short of breath when climbing up stairs – because your organs are retaining too much water.

A dialysis is a treatment that takes over your kidney functions if those organs stop doing their job. The idea behind it was to give renal patients something that mimicked what the kidney does, which is to process the waste that enters the blood stream from the metabolic processes and functioning of the body and to remove excess water from it (that is done in the glomerulus of the nephrons) and send it to the bladder through another channel called the ureter or urethra so that the patient can pee it out; and at the same time removing uremic toxins and other unwanted products from the body’s blood plasma and delivering them to the urine as inulin and even creatinine in some cases via diffusion!

There are two types of dialysis machines used to remove waste and excess fluid from the blood.

Hemodialysis – The most common form of treatment, hemodialysis treats people with kidney disease when the kidney is not functioning correctly (e.g. due to disease or injury) or when people with end-stage renal disease who are waiting for transplantation have a need to receive medical treatment while waiting for a donor organ to become available or a cadaveric organ transplant. However in most cases if the donated organs are available people wait for them to arrive rather than be put on maintenance haemo’ dialysis indefinitely to survive until their surgery can be performed so that they receive their transplants.

Peritoneal dialysis – uses a sterile solution that is instilled into the abdominal cavity using a tube that is attached to the patient’s side or by a catheter directly into the stomach, whereas hemodialysis is done with a machine outside the body (often referred to as the ‘dialysis chair’) to filter the blood through a membrane in order to remove waste products like urea etc. 

According to professional like those at, both types of kidney replacement therapies use an artificial filter to prevent accumulation of uremic toxins which build up in the blood when a person has kidney failure or when the patient undergoes a kidney transplant—these toxic products may damage the kidneys and heart tissue and lead to heart problems and death if left untreated.