The characteristics of kidney stone back pain: First, back pain is a continuous pain, and does not increase or decrease with the change of position. That is, whether the patient is standing, or lying down, the pain is persistent. It does not decrease or worsen. It is different from other types of low back pain, such as lumbar disc pain, which may decrease after lying down and increase after standing or weight-bearing. Secondly, kidney stone back pain is usually combined with abnormal urination, such as red urine, frequent urination and urgent urination. These are due to the inflammatory reaction caused by the rupture of the urinary tract mucosa due to stones. Third, kidney stones, in addition to back pain, can also radiate from the waist to the abdomen. During this process, there may also be nausea or vomiting. The pain is often due to the direction of ureteral travel and radiates to the upper abdomen and lower abdomen. Or it may cause spasm of the nerves in the gastrointestinal tract, which may be combined with nausea and vomiting. Other back pains are not accompanied by nausea or vomiting.