Dark urine: causes

by Alivia Nyhan
Published: Last Updated on

Urine is a yellowish fluid produced by the kidneys and is eliminated through the urinary system. Among its functions is removing toxins from our body produced by metabolism or by consuming drugs or other substances, regulating the excretion of potassium and sodium, and controlling blood pressure. Healthy urine should be light yellow, and however, when it appears darker, it is necessary to perform an exam to determine what it is. Generally, dark urine is associated with diseases, infections, the use of medications, and even our diet. At FastlyHealwe explain some causes of dark urine.

Dark yellow or orange urine

The intensity of the urine color is a warning symptom that something is not going well in our body. Not all cases will be related to a severe condition, and these can be temporary, but it is necessary to take measures in this regard. The causes of dark yellow or orange urine are:

  • The diet: if in our diet there is an excess of foods with vitamin C or carotenes, such as oranges, carrots, the urine may change color because the kidneys filter this substance in excess. The important thing is to reduce their intake without eliminating them from the diet.
  • Medications: especially those that treat urinary tract infections, antifreeze, chemotherapy drugs, or the use of laxatives. On the other hand, consuming some vitamin B supplements can also change the urine color since they are soluble in water.
  • Dehydration: the lack of fluid intake in the body causes urobilin, which is the substance that gives urine its color, to concentrate, producing very dark urine; drinking water will help reduce its intensity.

Red or brown urine

Here are the causes of what could produce red or brown urine :

  • Diet: in this case, the diet is once again a factor for the urine to change color, and it may be due to the consumption of foods that have this color naturally, such as beets or blackberries.
  • Hemolytic anemia is a condition in which the red blood cells are destroyed prematurely, this destruction causes the hemoglobin to be released, so the urine is red.
  • Injuries to the kidneys or urinary tract: due to bacteria from the urethra to the bladder. However, this can spread to the kidneys and is usually more common in women since their urethra is shorter and near the anus.
  • Liver or kidney disorders: if, in addition to dark yellow urine, you have jaundice, you should see a doctor immediately because it can be liver problems such as hepatitis or even cirrhosis. On the other hand, it can be glomerulonephritis, and this disease does not allow the kidneys to eliminate excess fluid from the body and toxins so that the urine will be brown.

Green or blue urine

Although it’s strange, and you probably didn’t know that urine could turn this color, the causes of green or blue urine are:

  • Food: especially those that contain artificial colors.
  • Medications: some antibiotics, chemotherapy medications, anesthetics, or those containing methylene blue in their composition.
  • Bilirubin: This pigment is found in the blood, but when it is high in the urine, it is a sign that there is a problem in the liver or bile ducts.
  • Urinary infections: it is necessary to treat them in time so that they do not generate a complication.

When to contact the doctor?

You will need to visit a doctor, especially if your urine is constantly a different color than it should be. If you have any of the following symptoms, you need to see a doctor immediately:

  • The abnormal color in the urine does not go away after several days.
  • Blood in the urine.
  • Red urine that is not due to any food.

This article is merely informative. At FastlyHeal .com, we do not have the power to prescribe medical treatments or make any diagnosis. We invite you to see a doctor if you present any condition or discomfort.

If you want to read more articles similar to Dark urine: causes, we recommend that you enter our Kidneys and urinary system category.

You may also like

Leave a Comment