Yellow urine with pungent sensation may be caused by urine concentration, urinary tract infection, urinary tract tumor and other factors. 1. Concentration of urine: drinking too little water for a long time or holding urine for too long, resulting in concentration of urine, high content of other substances in the urine, too little water, which may make the urine yellow and pungent sensation, more water and more urination can be restored on their own. 2. Urinary system infection: for example, cystitis, when the infection is more serious, it can make the urine have too much purulent material, which may make the urine yellow and have pungent sensation, accompanied by pain in urination, frequent urination, urinary urgency and other symptoms. 3. Urinary system tumor: for example, bladder tumor, tumor surface tissue necrosis, may be secondary to infection, may make the urine yellow with pungent sensation, may also appear naked eye painless hematuria. Urine yellowing with pungent sensation, and the presence of other abnormalities, should be alert for disease factors, it is recommended to seek medical examination and treatment.