Microscopic haematuria is discussed elsewhere.
Macroscopic haematuria carries different connotations. In haematuria clinics, about one in three cases are associated with malignancy somewhere in the urinary tract. Nephritis is a rare cause.
Of the causes of haematuria listed in the diagram in our patient leaflet on haematuria, some are particularly likely to cause macroscopic haematuria:
|Malignancy||of kidney, collecting system or bladder|
|Acute nephritis||severe crescentic nephritis|
|acute post-streptococcal nephritis (usually pink or smoky rather than frank blood)|
|IgA nephropathy in young people, usually with an acute respiratory infection (usually pink or smoky rather than frank blood)|
|Infection||usually requires severe cystitis|
Could it be caused by nephritis?
Ask about reduced urine output (oliguria). Refer to risk factors for renal disease (from the guideline on microscopic haematuria).
The recommendations above are concordant with the approach recommended in the SIGN Guidelines; however we are told that Guideline 17 is currently withdrawn as revision has not been undertaken.
The EdRenHANDBOOK contains information aimed primarily at hospital doctors about immediate management of renal problems.
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