Kidney stone patients can eat tomatoes, but should not eat too much. Tomatoes are rich in carotene, vitamin A, vitamin C and other nutrients that are beneficial to the human body, and when consumed by patients with kidney stones, they can replenish the nutritional requirements in the body. Therefore, you can eat tomatoes. However, eating too much is not conducive to digestion, so it needs to be consumed in moderation. Kidney stone patients should ensure that they drink more water and urinate more every day, and do physical exercise appropriately, so as to promote the discharge of smaller stones. Patients with calcium oxalate stones should eat less food rich in oxalic acid. In addition, patients should go to the hospital for regular checkups. If the stones become bigger or patients have symptoms such as back pain and hematuria, they need to be treated under the guidance of the doctor.