From the second half of April, the air gets a bit milder, and in May, when the maximum average temperatures are around 18/20 Â°C, the first warm days occur, which in Germany are characterized by possible thunderstorms in the afternoon, especially in inland areas.
In general, acute kidney failure is not associated with bloody stools. In fact, the symptoms of acute kidney failure are often difficult to detect. In general the symptoms of kidney injury include changes in your urine output or total volume, bloody urine, dark urine, foamy urine, or general tissue swelling.
1 Kidney stones. Large kidney stones cannot enter the ureter but a stone less than 5mm in diameter can cause a sudden obstruction.  Blood clots may obstruct the ureter and this is usually seen with massive hematuria (blood in the urine). Bleeding in these cases may be due to tumors, papillary necrosis or kidney stones.