What Causes Blood in the Urine of Women Over 50?

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Urinary tract infections, kidney or bladder stones and kidney infections can cause blood in the urine of women over 50, states WebMD. A few other factors include consuming certain medicines and foods, according to Drugs.com.

Blood in the urine can be due to urinary tract infections. In such cases, bacteria enters the urethra and accumulates in the bladder. Common symptoms include painful urination, a burning sensation while urinating, unusual-smelling urine and frequent urination. In some adults, microscopic blood cells in the urine is the only symptom, notes WebMD.

Kidney stones or bladder stones can cause heavy or mild bleeding while passing urine. The stones are small, hard mineral deposits in the kidney or the bladder. They are usually painless but can also cause excessive pain in some cases. Pyelonephristis or infections in the kidney occur because of bacteria from the blood entering the kidney. They are characterized by blood in the urine, flank pain and fever, according to WebMD.

Drugs such as penicillin, cyclophosphamide, heparin and aspirin can also lead to blood in the urine, notes WebMD. Some medications tend to turn urine a red color, such as vitamin B, Pyridium, Phenolphthalein and Rifampin. Fruits such as blackberries and vegetables such as beets and rhubarb can turn urine

red, states Drugs.com. The urine becomes a normal color when the intake of these medications or foods is stopped.