Flank pain that uncomfortable sensation on either side of your lower back or abdomen can have a wide range of causes. Sometimes it’s a harmless muscle strain. Other times, it could signal something more serious, like a kidney infection or gallbladder issue. Knowing how to interpret this type of pain is crucial for timely and effective treatment.
At Erdem Hospital, with over 37 years of experience in comprehensive diagnostic care, we help patients identify the cause of persistent or sudden pain with expert attention and advanced medical technology. Here’s what you should know if you’re experiencing flank pain.
What Is Flank Pain?
Flank pain refers to discomfort or pain located on one or both sides of the body, below the rib cage and above the hips. It may be sharp or dull, constant or intermittent, and can sometimes radiate to the abdomen or groin depending on the underlying issue.
The pain may:
- Be worse during movement or deep breathing
- Appear suddenly or build gradually
- Occur on just one side or both
Because this area contains important organs including kidneys, ureters, liver, gallbladder, and parts of the digestive tract, getting the right diagnosis is essential.
Common Causes of Flank Pain
1. Muscle Strain
This is one of the most frequent causes of flank pain. Heavy lifting, poor posture, or overuse during sports can strain the muscles along the spine or lower ribs. The pain is typically localized and worsens with movement or touch.
2. Kidney Stones
Sharp, stabbing pain that comes in waves and radiates to the groin may indicate kidney stones. This pain is often accompanied by nausea, vomiting, or blood in the urine. It can be extremely intense and requires prompt medical evaluation.
3. Kidney Infection (Pyelonephritis)
This bacterial infection can cause flank pain, fever, chills, and urinary symptoms such as burning or frequent urination. It often requires antibiotics and should not be ignored.
4. Urinary Tract Infection (UTI)
While most UTIs cause lower abdominal discomfort, a spreading infection can affect the kidneys and result in one-sided or bilateral flank pain.
5. Gallbladder Disease
Pain on the right flank, particularly after eating fatty meals, may be linked to gallstones or gallbladder inflammation. This can radiate to the shoulder blade or chest and is often accompanied by digestive upset.
6. Liver Disorders
The liver sits in the upper right side of the abdomen. Conditions like hepatitis, fatty liver disease, or liver congestion can cause discomfort in the right flank, sometimes paired with jaundice, fatigue, or swelling.
7. Gastrointestinal Causes
Constipation, bloating, or colitis can sometimes present as side pain. This is more likely if the discomfort comes with digestive symptoms like gas or changes in bowel habits.
8. Spinal or Nerve Issues
Herniated discs, sciatica, or nerve compression can cause pain that radiates along the flank and into the legs. This is often related to posture or degenerative changes in the spine.
When Should You Seek Medical Help?
While minor flank pain often resolves on its own, you should see a doctor if:
- Pain is severe, persistent, or sudden in onset
- There is fever, chills, or signs of infection
- You notice blood in the urine or changes in urinary habits
- Pain is accompanied by nausea, vomiting, or abdominal bloating
- There is unexplained weight loss or fatigue
- You have a history of kidney, liver, or gallbladder issues
At Erdem Hospital, our internal medicine, nephrology, and gastroenterology departments collaborate to quickly identify the cause of flank pain. We use state-of-the-art tools like ultrasound, CT scans, MRI, and blood and urine tests to pinpoint the problem and guide treatment.
How Is Flank Pain Treated?
Treatment depends entirely on the underlying cause. Possible approaches include:
- Pain management and rest for muscular strain
- Antibiotics for infections (e.g., kidney or urinary tract)
- Hydration and supportive care for passing small kidney stones
- Surgery or intervention for large stones or gallbladder issues
- Physical therapy or orthopedic care for spine-related pain
If the pain is linked to chronic liver or kidney conditions, you may be referred to a specialist for long-term management and follow-up.
Your Body Sends Signals Don’t Ignore Flank Pain
Flank pain isn’t a condition, it’s a message. Whether it’s a minor strain or a sign of something deeper, the key to effective treatment is early recognition and proper diagnosis.
At Erdem Hospital, we take every symptom seriously. With over three decades of experience and a compassionate, multidisciplinary team, we guide our patients from discomfort to clarity and healing step by step.
Let us help you find the cause and the right solution.