In general, most stones of 1 millimeter pass through the urethra without any noticeable discomfort. In most cases, when the stone is less than 2 millimeters, the patient will not feel any obvious reaction during the passage through the urethra. And 1 mm stones usually do not need special treatment, patients can drink more water and more exercise to promote the body’s stone discharge. As the recurrence rate of stones is relatively high, so in daily life, patients should eat regularly, do not overeat, should develop a good habit of eating on time, and at the same time, increase the intake of vegetables, fruits, coarse grains and other dietary fibers as appropriate, and also develop the habit of drinking a lot of water, and go to the hospital for regular medical checkups. To summarize, 1 mm stones are usually not serious, but patients should change their lifestyle habits in a timely manner and undergo regular checkups to prevent further development of the stones.