A kidney biopsy is a medical procedure in which a small sample of tissue is taken from one or both of the kidneys for examination under a microscope. The procedure is usually performed by the nephrologist, and is done using a small needle inserted through the skin
and into the kidney.
The purpose of a kidney biopsy is to help diagnose and treat kidney diseases or disorders,such as unexplained rising serum creatinine, glomerulonephritis, nephrotic syndrome (protein leak in urine), or kidney cancer. The biopsy can also be used to determine the
severity of the disease and to monitor the progress of treatment.
Before the procedure, the patient is typically given local anaesthesia to numb the area where the biopsy needle will be inserted. The doctor then uses an ultrasound or CT scan to guide the needle into the kidney and collect a small sample of tissue.
After the procedure, the patient may need to rest for a few hours and avoid strenuous activity for a few days. Possible complications of a kidney biopsy include bleeding, infection, and damage to surrounding organs, although these are rare. Patients should talk to their
doctor about any concerns or questions they have before undergoing a kidney biopsy.