Urine with blood, scientifically called hematuria, usually arises due to problems in the kidneys or the urinary tract. The most frequent symptom to appear is a burning sensation while urinating, pink urine, blood wires in the urine, what can happen due to kidney stones or urinary tract infection, for example.
However, bloody urine may also arise due to over-exercising, for example, but it may not be motive to become worried if it lasts less than 24 hours. Blood in urine may appear in women during menstruation and should not be cause for alarm. Eating foods with red dyes can also leave the urine seemingly pink or reddish, as well as taking certain medication like Novalgina, for example.
Main causes for blood in urine
The main causes for blood in urine are:
1. Urinary tract infection
- How to identify: It is more common in women and usually causes frequent urge to urinate, pain while urinating and a heavy feeling in the bottom of the belly. See other symptoms in: Urinary tract infection symptoms.
Treatment: you should see a gynecologist or urologist, because a urinary tract infection should be treated with antibiotics prescribed by the doctor.
2. Kidney stones
- How to identify: It is more common in adults, but can appear at any age, causing burning while urinating, intense pain in the back and nausea.
- Treatment: Kidney stone is a medical emergency because of the severe pain it causes, so it is recommended to go to the emergency room as soon as possible.
3. Foods with reddish coloring
- How to identify: It happens when you eat a lot of reddish foods, like beets, or with red dye, which can leave your urine red, looking like blood.
- Treatment: One should stop consuming these foods and increase water consumption to about 2 liters per day.
- How to identify: Some blood-thinning medication, such as warfarin or aspirin, can cause blood to appear in the urine, especially in elderly patients.
- Treatment: It is recommended you see the doctor who prescribed the medication in order to adjust the dose.
5. Kidney, bladder or prostate cancer
- How to identify: These diseases are the most frequent causes for the appearance of blood in urine in men, and can also cause urinary incontinence, pain when urinating, loss of weight or difficulty urinating.
- Treatment: If these symptoms appear or blood appears for no apparent reason you should consult a gynecologist or urologist.
Blood in urine during pregnancy
Blood in urine during pregnancy is usually caused by a urinary tract infection. However, the blood may originate in the vagina and mix with the urine, indicating more serious problems such as placental abruption, which should be treated as soon as possible to prevent harming the fetus.
Whenever urine with blood appears during pregnancy, it is recommended you go immediately to the obstetrician so that he can make the necessary diagnostic tests and start the appropriate treatment.
Urine with blood in a newborn
When blood appears in a newborn's urine it is usually not serious, as it can be caused by the presence of urate crystals in the urine, which gives it a reddish or pinkish color, appearing as if the baby has blood in the urine.
To treat this problem in newborns, parents should give the baby water throughout the day so as to dilute the urine. However, if the blood in the urine does not disappear after 2 to 3 days, it is recommended you see a pediatrician so that the baby can be evaluated and appropriate treatment started.
When to go to the doctor
To treat this problem you should see a gynecologist if you are a women or an urologist if you are a man, when:
- Blood in urine lasts for more than 48 hours;
- Other symptoms appear like fever above 38ºC, intense pain when urinating or vomiting;
- There is difficulty urinating or urinary incontinence.
To identify the cause of the blood in the urine, your doctor may order diagnostic tests, such as ultrasound, CT scan, or cystoscopy.