Hello Thanks for your query,based on the facts that you have posted it appears that your husband had bout of Hematuria . You have not mentioned age of your husband in your query. The common causes of hematuria in men are 1) Infection 9UTI) 2) Enlarged prostate in old age 3) Cancer of the kidnye or bladder tumour. Please consult qualified Urologist for clinical evaluation and get following basic tests done to confirm the diagnosis, 1) Ultrasound scanning of abdomen 2) C.T scan of Kidney ureter and bladder. 3) Endoscopic examination of bladder (Cystoscopy). Further treatment will depend upon the findings of these tests and final diagnosis. Dr.Patil