Urinary and Prostate Microbiotes and Prostate Cancer

All patients included, will report to the urology department on the date previously agreed with the surgeon. The patient will be seen by the nurse and urologist on duty as part of outpatient care or, more rarely, in ambulatory care. After verification of the patient's identity, the signature of informed consent, the absence of immediate contraindications to biopsy (haemorrhagic and infectious) and the patient's proper preparation (antibiotic prophylaxis and possible enema), the patient will be installed for the taking of samples covered by the protocol (rectal swabbing and prostate biopsies, see paragraph IX). If the patient has not taken the antibiotic prophylaxis or performed the enema, he or she will be reconvened at a later date for the biopsies. After the prostatic biopsies have been performed, the patient's participation in the study ends and his follow-up resumes according to the recommendations adapted to his pathology.

It will be collected after the prostate massage performed by the surgeon in charge of the patient during his clinical examination for prostate cancer screening. After elimination of the first draft, the urine will be collected in 2 tubes with borated preservative

A rectal swab will then be taken by the urologist on the day the prostate biopsies are taken. The analysis of the digestive microbiota will eliminate contamination of prostate biopsies by bacteria from the faecal flora during transrectal sampling