Ureteric stones are kidney stones that have moved from the kidney into the ureter, the narrow tube that carries urine to the bladder. When a stone gets stuck or moves through the ureter, it can cause severe pain that typically starts in the flank and travels down toward the groin. This characteristic pattern of pain is often a key clue in diagnosing ureteric stones.
The ureter is a narrow, muscular structure. When a stone blocks urine flow or irritates the ureteric lining, it triggers strong muscular contractions in an attempt to push the stone forward. These spasms, combined with pressure buildup in the kidney, result in intense pain known as renal colic.
The nerves supplying the ureter are connected to the flank, abdomen, and groin. As the stone changes position, the pain radiates along these nerve pathways, producing the classic flank to groin pain.
Table of Contents
Pain Based on the Location of Ureteric Stones
Upper Ureter
Stones located near the kidney usually cause pain in the flank or lower back, just below the ribs. The pain may be constant or come in waves and is often severe.
Middle Ureter
When the stone moves to the middle part of the ureter, pain often shifts toward the side of the abdomen. This can sometimes be mistaken for gastrointestinal or appendicular pain.
Lower Ureter
Stones near the bladder commonly cause pain that radiates to the groin, lower abdomen, testicles in men, or labia in women. Urinary symptoms such as urgency, frequency, and burning during urination are more common at this stage.
Associated Symptoms
Along with pain, ureteric stones may cause blood in the urine, nausea, vomiting, painful urination, and an increased urge to urinate. If fever, chills, or severe weakness occur, this may indicate an infection and requires immediate medical attention.
Diagnosis of Ureteric Stones
Diagnosis is usually confirmed through imaging studies such as ultrasound or CT scan, along with urine and blood tests. A CT scan is the most accurate method for identifying the size and exact location of the stone.
Treatment Options
Small stones often pass on their own with adequate hydration and pain management. Larger stones may require medical therapy, shock wave lithotripsy, ureteroscopy, or surgical intervention depending on size, location, and symptoms.
When to See a Doctor
Seek medical help if the pain is severe, persistent, or accompanied by fever, vomiting, or difficulty passing urine. You can consult a healthcare professional through oladoc.
Final Thoughts
Flank to groin pain is a classic and important symptom of ureteric stones. Understanding how pain varies with stone location helps in early recognition and timely treatment, leading to better outcomes and faster relief.
