A prostate biopsy is an examination method that involves taking cells from the prostate tissue. It plays a key role especially in the diagnosis of prostate cancer. It is not possible to diagnose prostate cancer without a biopsy and subsequent histological examination. In the case of the prostate, the doctor may suspect a tumour based on palpation or, in particular, based on an increased PSA concentration, but only a tissue analysis will confirm or refute their suspicion. Even in cases where a malignant tumour is not present, a biopsy and subsequent analysis of the tissue will provide information about the nature of the tissue changes, and we can decide on further treatment based on these findings.
The biopsy is performed with a special biopsy needle using an ultrasound probe inserted into the rectum. During the examination, an ultrasound probe is first introduced into the rectum, which helps to determine the places from which the tissue is taken. The tissue collection is carried out from approximately 10 to 12 places of the prostate. The examination is not painful, but rather uncomfortable, so you can ask the doctor who will perform the biopsy for analgesia. The time required for the examination is usually 10 to 15 minutes.
Before the examination, a thorough emptying of the rectum (preferably with the help of glycerine suppositories) and in some cases also the administration of antibiotics is necessary. If you are taking blood thinners, these medications must be discontinued 5 days in advance, in agreement with your general practitioner or specialist, or replaced with other, more suitable medications.
The collected tissue samples are then sent for a histological examination, which refutes or confirms the presence of tumour cells.