When you have a cold, more urine is caused by two reasons: First, when you have a cold, people are easily inflamed, and at this time, you are susceptible to bacterial infections, and the immune barrier and immune function of the urinary tract is relatively weak, so it is easy to induce acute urinary tract infections, also known as acute urethritis, acute urinary tract infections will have frequent urination, urinary urgency, increased urination, accompanied by painful urination, and in severe cases, there will be symptoms of urinary incontinence, so the cold will lead to The urinary tract infection will lead to urination. Second, because of the need to take drugs after the cold, some drugs have diuretic effect, will also cause more urine after the cold, there will be more water after taking the medicine in the cold, drink more water or drink warm juice and other drinks, will also cause osmotic diuretic factors lead to urination.