Left Lower Back Pain: Causes and When to Seek Help - Family Medicine

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Left flank pain?


Hello, my symptoms are as follows: I have left lower back pain that radiates from the side to the back.
It feels similar to general back pain, but it is not constant; sometimes it occurs, and sometimes it does not.
Occasionally, I also experience soreness in the left flank, and more rarely, I feel a bit unusual on the right side as well.
This situation has been ongoing for about half a month.
I do not have any cold symptoms, and my stool color and shape are normal.
My daily routine is normal, and I am not taking any other medications.
What could be the issue? If I need to go to the hospital for further examination, which department should I visit, and what kind of tests should I undergo? Thank you for your response!

Emma, 20~29 year old female. Ask Date: 2013/03/11

Dr. Hou Angting reply Family Medicine


There are many potential causes of left-sided lower back pain, ranging from superficial skin and muscle layers to internal organs.
If we assess the pain as intermittent and occurring over the past two weeks, it is commonly due to muscle injury.
However, pain from certain internal organs can also present similar symptoms, such as pain caused by kidney stones.
Therefore, it is still recommended for Emma/1/25 to consult with a family medicine specialist for further evaluation and examination.

Reply Date: 2013/03/11

More Info


Left lower back pain can be a common issue that many individuals experience at some point in their lives. The symptoms you describe, such as intermittent aching in the left lower back and occasional discomfort radiating to the left side and even the right side, can be attributed to various causes. Understanding these potential causes is crucial in determining the appropriate course of action, including whether to seek medical help and what kind of evaluations might be necessary.


Possible Causes of Left Lower Back Pain
1. Muscle Strain or Ligament Sprain: One of the most common reasons for lower back pain is a strain or sprain of the muscles or ligaments in the back. This can occur due to improper lifting, sudden movements, or even prolonged poor posture.

2. Herniated Disc: A herniated disc occurs when the soft material inside the disc bulges out and can press on nearby nerves, leading to pain that may radiate to other areas, including the legs.

3. Sciatica: If the pain is associated with numbness or tingling that travels down the leg, it may be due to sciatica, which is caused by irritation or compression of the sciatic nerve.

4. Kidney Issues: Sometimes, pain in the lower back can be referred pain from kidney problems, such as kidney stones or infections. This is particularly relevant if there are accompanying symptoms like changes in urination.

5. Sacroiliac Joint Dysfunction: The sacroiliac joint connects the lower spine to the pelvis. Dysfunction in this joint can cause pain in the lower back and may be exacerbated by certain movements.

6. Other Conditions: Conditions such as arthritis, spinal stenosis, or even infections can also lead to lower back pain.


When to Seek Medical Help
Given that your symptoms have persisted for about two weeks without significant improvement, it would be wise to consult a healthcare professional. Here are some indicators that you should seek medical attention:
- If the pain worsens or becomes persistent.

- If you experience numbness, tingling, or weakness in your legs.

- If you have difficulty controlling your bladder or bowels.

- If you notice any changes in your weight or appetite, or if you experience fever or chills.


Recommended Medical Specialties and Tests
When you decide to seek medical help, the first step is typically to visit a primary care physician or a specialist in orthopedics or physical medicine and rehabilitation (PM&R). They can perform a thorough evaluation, which may include:
1. Physical Examination: The doctor will assess your range of motion, strength, and any areas of tenderness.

2. Imaging Tests: Depending on the findings from the physical exam, the doctor may recommend imaging tests such as X-rays or MRI scans to visualize the structures of your spine and surrounding tissues.

3. Blood Tests: If there is a suspicion of an underlying infection or inflammatory condition, blood tests may be ordered.

4. Referral to Specialists: If necessary, your doctor may refer you to a neurologist, rheumatologist, or a pain management specialist for further evaluation and treatment.


Conclusion
In summary, left lower back pain can arise from various causes, ranging from muscle strain to more serious conditions like herniated discs or kidney issues. Given the duration of your symptoms, it is advisable to seek medical attention to determine the underlying cause and receive appropriate treatment. Early intervention can help prevent the condition from worsening and improve your quality of life. Remember to provide your healthcare provider with a comprehensive history of your symptoms, as this will aid in making an accurate diagnosis and developing an effective treatment plan.

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