What does dark colored urine indicate?

Recently I have had dark colored urine with bad odor. I went to the doctor and she told me it was a urinary tract infection. I have had urinary tract infections before and I'm not having any of the other symptoms (fever,pain,chills,etc.) so I don't think thats it. I don't think it's dehydration either because I... show more Recently I have had dark colored urine with bad odor. I went to the doctor and she told me it was a urinary tract infection. I have had urinary tract infections before and I'm not having any of the other symptoms (fever,pain,chills,etc.) so I don't think thats it. I don't think it's dehydration either because I drink a lot of water. What else could it be?
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