Kidney Stones can cause severe side pain, lower back pain, burning during urination, nausea, vomiting, blood in urine, or pain spreading toward the groin when stones move or block urine flow. Stones measuring around 7 to 9 mm may sometimes become difficult to pass naturally and can increase the chance of blockage or repeated pain episodes. Pain-relieving, antispasmodic, and relaxant medicines are commonly used to reduce pain and support stone passage, depending on stone size and kidney condition. Drinking adequate water may help smaller stones move more easily, but excessive water should be avoided if severe blockage or vomiting is present. Doctors may also advise urine tests, kidney function tests, and stone analysis to guide treatment and prevent recurrence. Stones closer to 8 to 9 mm may sometimes require procedures such as laser treatment, lithotripsy, or ureteroscopy if pain continues or stones do not pass naturally. Avoid delaying treatment if fever, reduced urine output, severe vomiting, persistent blood in urine, or unbearable pain occurs because blocked infected stones can become dangerous. Consult a doctor for a detailed evaluation and proper treatment planning for both kidneys.