Transperineal biopsies carry risk as a normal TRUS prostate biopsy carried out through the rectum. The complications of both are similar, but with two important differences. As the needles are going through skin rather than back passage, the procedure is cleaner and has a lower infection rate. However, because we take more biopsies, there is bruising and the importantly, the prostate can swell causing the water passage to block. This is called retention of urine and you will need to have a plastic tube (catheter) inserted into the bladder to drain the urine for a few days whilst the swelling goes down. The plastic tube is a temporary measure. To reduce the risk of this happening we ask that you take a tablet that relaxes the prostate, as described above.
The other complications that you need to be aware of are: