Drinking less water to cause urinary discomfort is generally not normal, considering that it may be a urinary tract infection. Under normal circumstances there will be a small number of bacteria living around the urethra, but will not cause infection, when the body’s resistance to decline, urethral mucosal injury or invasion of bacterial pathogenicity is strong, the bacteria can invade the urethra and upstream into the urinary system. At this time whether to cause infection and the body’s defense function, in which the flushing effect of urination helps to defend against infection, but if you drink less water caused by less urination, it may cause urinary tract infection, the patient manifested as frequent urination, urinary urgency, urinary pain, accompanied by urinary discomfort. At this time, attention should be paid to rest, drink more water, diligent urination, and active treatment, if the bladder irritation sign is obvious, you can take oral sodium bicarbonate tablets, in order to alkalize the urine, relieve the symptoms, inhibit bacterial growth. If diagnosed with urinary tract infection, sensitive antibacterial drugs can be used for treatment, such as sulfonamides, quinolones or cephalosporin antibiotics. All the above drugs need to pay attention to the side effects and adverse reactions of drugs, please use the above drugs under the guidance of a doctor. Therefore, patients with urinary tract discomfort caused by drinking less water should go to the hospital in time, identify the cause of the disease, and under the guidance of the doctor for treatment.