what does yellow sweat mean
Rating Newest Oldest. Best Answer: Perspiration, in addition to being a way for the body to regulate temperature, is also a means of excreting bodily wastes. The yellow stains are caused by (among other things) urea, which is one of the waste products generated by the body's natural processes.Urea is, as you might imagine, also excreted in urine (it's why your pee is that yellow color sometimes), although urea is FAR more concentrated in urine than in sweat.lso, wear a deodorant or antiperspirant that doesn't contain aluminum salts. If that's not an option, switch to a non-solid antiperspirant (a gel or a non-powder spray), and to allow it to dry completely before getting dressed.