Pink urine color can be caused by food. Pink urine can be a sign of hematuria or blood in urine. Be sure to watch for other signs that could indicate urine problems , such as frequent urination, painful urination, difficulty urinating and blood in your urine. 19 Sep Pink urine. Verhoeven E(1), Capron A, Hantson P. Author information: (1) Department of Intensive Care, Cliniques St-Luc, Université catholique de Louvain , Brussels, Belgium. A year-old man was admitted after a suspected hypnotic overdose of valerian extracts. In addition to altered consciousness, the. Hematuria in most cases does not stain the urine to the extent that it will be visibly red or pink. In severe cases where there is significant bleeding in the lower urinary tract then the urine may have a red to pink hue. This is known as gross hematuria. Similarly pain is not a reliable indication of whether red urine or pink urine is.