Women with heavy urine odor, then the possible causes: First, urine concentration, when a long time without urination, or drink less water, more evaporation of body fluids, can lead to concentrated urine. At this time, after urination will feel heavier urine smell, and urine color is darker, showing yellow or brown, usually not accompanied by frequent urination, urinary urgency and other symptoms; Second, when eating special smell of food, can also appear urine smell heavier situation. For example, onion, garlic, durian, etc., can appear for a short period of time urine smell heavy, after stopping the relevant food intake, urine smell heavy situation can disappear, generally no urinary tract irritation symptoms; Third, when suffering from urinary tract infectious diseases, such as pyelonephritis, cystitis, urethritis, etc., may lead to urine containing more pus cells, white blood cells, or bacterial metabolites, etc.. This will result in a heavy urine smell, accompanied by urinary tract irritation symptoms such as frequent urination, urinary urgency, and painful urination.