brown urine

most likely it's just dehydration. it sometimes happens to me in the summer after a run of 15 miles or more. drink more water on a daily basis.

Concerned - I know it's scary, but I agree with your doc. I think what is happening is that you are stressing your body to the point that you are damaging red blood cells probably because you are dehydrating causing the rbcs to bunch up and sheer against each other thereby damaging their cell membranes. This which producnes a compound called hemosiderin which is then forced through the kidney into the urine causing it to be dark. This a reversible, benign condition which physicians rule out in diagnosing illnesses that also cause dark urine. A sports drink that is high in postassium may help, or you could just back off every 2nd to third week.

"Running is a mental sport, and we're all insane."

I went abroad and caught Hepatits A in untreated water. When I came back to the U.S., one week later, my piss was tea brown, and the idiots at my local student services building told me I was "just dehydrated". Blood tests proved otherwise.

If you're feeling strange, and the piss is especially discolored, get some bloodwork done.

I had the same thing happen to me and it scared me too. Just stay hydrated. Thats what i did and it goes away. If it continues then tell your Doc to do a test.

we can guess until we're blue in the face, but seriously, a 2-minute urine test will tell you if it is dehydration, infection, blood, myoglobin, or whatever.

Kidney failure

It is blood. And it is a sign of dehydration. I've had it happen many times and went to doctors for it as well. Being that it looks brown just means that your not dehydrated enough for it to look like stright blood. But, it can come out looking like stright blood.

I remember a cold 24 mile run a year or two ago. Ran the last hour at a very hard pace. I peed brown afterwards. Most likely it's just a little blood in the urine, nothing to worry about unless it comes without hard exercise.

Alan

I am a soldier and it happens a lot with sustained physical activity involving repetitive pounding of the feet on hard surfaces. My doc called it 'march haematuria' and put it down to the bursting of red blood cells in the capillaries which then get excreted through the urine. Nothing to worry about unless it persists after cessation of heavy exercise or becomes painful to pee. Rest up and it will subside.

Too late, Johnboy. OP bled to death seven years ago.

There are quite a few reasons as to why the color of your urine changes. For example it can be due to inadequate fluid intake to a serious disease. However the main cause of dark colored urine is dehydration, which means you are not taking in enough water into your system. The dark urine color is from a high concentration of the waste materials rather than water. If you are dehydrated you may even smell a stronger odor in your urine because of the nitrogenous waste products.

You can read more about dark urine on -

http://www.steadyhealth.com/articles/abnormal-urine-color-what-it-tells-and-doesnt-tell-about-your-health

This only happens when you have sex with other people that stick parts of their body in your rectum, and you , in theirs, thereby causing brown stuff to mix with your urine.

Breakdown of skeletal muscle after training. Hydration, nutrition, rest all important.

what about the taste

While sometimes fatal, this sounds like a mild case of intertubular amalgamatin. This results when fluids from a leak in your large intestine enter your urine via a small perforation in both the large intestine and bladder. Friction from running can sometimes cause these small tears.

I recommend eating saltine crackers, up to 2 packs a day, to facilitate your bladder/colon healing and the absorption of bowel fluids.

/thread

Brown man wrote:

what about the taste

Very salty and a little sour like lemon.

Strenuous aerobic exercise can cause lysis (destruction) of red blood cells, the debris from which are then filtered out of the blood by the kidneys which then exits the body in your urine. Research is still unclear about exactly how RBCs are burst, but it's likely either due to compressive forces in the heart when at high heart rate or from high blood pressure through very narrow blood vessels.

Either way, it seems to indicate that you ran an intense workout, but you might feel anemic for a day after until your blood recovers.

What year is this