Conversation: The conversation between human and AI assistant.
[|Human|] I am a 68 year old male and very active. I have started urinating dark blood, almost black. I know I dont drink alot of fluids and have had one case of kidney stones last summer. I dont have pain in my kidneys as of this typing, such as the pain of a kidney stone. Thank you in advance
[|AI|]  HelloThanks for query. Dark colored urine at the age of 68 years could be due to one of the following three possibilities and needs to be investigated 1) Enlarged Prostate 2) Mass in the bladder or kidney 3) Stone in the kidney. Please consult qualified Urologist for clinical and digital rectal examination and get following basic tests done to confirm the diagnosis.1) Urine routine and culture.2) Ultrasound scanning of abdomen and pelvis3) Serum PSA.4) Endoscopic examination of bladder (Cystoscopy)Further treatment or any more investigations required will depend upon result of these tests and final diagnosis. Chat Doctor.