FlyerTalk Forums - View Single Post - is it normal to have blood in semen after a long 15-hour nonstop flight?
Old Nov 18, 2015, 5:26 pm
  #13  
superangrypenguin
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Originally Posted by abmj-jr
Are you certain is it actually blood? There are some dietary changes and medications that can cause a reddish brown color in semen and urine. Even an excess of alcohol or caffeine beyond what you are used to can cause color changes.
?

Never in years of excessive alcohol consumption has my urine changed color...
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