Back Pain: Is It a Muscle Strain, Kidney Stone, or Something More?

Back pain is one of the most common reasons people visit urgent care. It can start suddenly after lifting something heavy, develop after a long day at work, or appear without any obvious cause. While many cases are caused by strained muscles or poor posture, back pain can sometimes signal a more serious medical condition that requires prompt evaluation.

At EZMED Primary & Urgent Care, we evaluate many causes of back pain and help patients determine whether the problem is muscular, related to the kidneys, caused by nerve irritation, or something else entirely. We proudly care for patients throughout Timonium, Lutherville, Cockeysville, Towson, Hunt Valley, Phoenix, Mays Chapel, Sparks, Parkville, Owings Mills, Baltimore County, and surrounding Maryland communities.

Common Causes of Back Pain

Back pain can affect the upper, middle, or lower back, and the location of the pain often provides important clues about its cause.

Some of the most common causes include:

• Muscle strains and ligament sprains
• Herniated or bulging discs
• Sciatica (pinched nerve)
• Arthritis of the spine
• Kidney stones
• Kidney infections
• Poor posture or overuse injuries
• Compression fractures
• Less commonly, serious infections or other medical conditions

A proper medical evaluation can help identify the underlying cause and guide the most appropriate treatment.

Is It a Muscle Strain?

A muscle strain is one of the most frequent causes of back pain.

Muscle strains often occur after:

• Lifting heavy objects
• Sudden twisting movements
• Yard work
• Exercise
• Moving furniture
• Repetitive bending

Symptoms commonly include:

• Aching or tight muscles
• Pain that worsens with movement
• Muscle spasms
• Tenderness when touching the affected area
• Stiffness, especially after resting

Most muscle strains improve with rest, gentle stretching, activity modification, and appropriate treatment.

Could It Be a Kidney Stone?

Kidney stones can cause severe pain that is often mistaken for back problems.

Kidney stone pain typically:

• Begins suddenly
• Occurs on one side of the back or flank
• May radiate toward the lower abdomen or groin
• Comes in waves
• Can be extremely intense

Other symptoms may include:

• Blood in the urine
• Nausea or vomiting
• Frequent urination
• Burning during urination
• Difficulty finding a comfortable position

Kidney stones often require medical evaluation to determine their size and whether additional treatment is necessary.

Could It Be a Kidney Infection?

Unlike kidney stones, kidney infections are usually accompanied by signs of infection.

Symptoms may include:

• Fever
• Chills
• Pain in the side or back
• Painful urination
• Frequent urination
• Cloudy or foul-smelling urine
• Fatigue
• Nausea or vomiting

Kidney infections should be evaluated promptly because they may require antibiotics and additional testing.

Is It Sciatica?

Sciatica occurs when the sciatic nerve becomes irritated or compressed, often due to a herniated disc or spinal changes.

Symptoms commonly include:

• Pain that starts in the lower back and travels into the buttock or leg
• Burning or shooting pain
• Tingling or numbness
• Weakness in the leg or foot
• Pain that worsens when sitting for long periods

While many cases improve with conservative treatment, persistent or severe symptoms should be evaluated.

When Should You Visit Urgent Care?

You should consider visiting EZMED Primary & Urgent Care if you have:

• Moderate or severe back pain
• Pain after lifting or an injury
• Pain lasting several days without improvement
• Pain that interferes with walking, sleeping, or daily activities
• Pain accompanied by urinary symptoms
• Suspected kidney stone symptoms
• Fever with back pain
• Muscle spasms that are not improving
• Numbness or tingling that is new or worsening

Our experienced providers can perform a thorough examination and determine whether additional testing or treatment is needed.

When Should You Go to the Emergency Room?

Seek emergency medical care immediately if back pain is accompanied by:

• Loss of bowel or bladder control
• Numbness around the groin or inner thighs (saddle anesthesia)
• Significant weakness in one or both legs
• Severe pain after a major fall or motor vehicle accident
• Difficulty walking due to sudden weakness
• High fever with severe back pain and confusion
• Chest pain, shortness of breath, or pain radiating from the chest

These symptoms may indicate a medical emergency that requires immediate evaluation.

How EZMED Can Help

Our providers evaluate many types of back pain and can help determine the underlying cause through a detailed history and physical examination.

Depending on your symptoms, your visit may include:

• Physical examination
• Neurologic evaluation
• Urinalysis to check for infection or blood
• Referral for imaging when appropriate
• Prescription medications when medically indicated
• Muscle relaxants if appropriate
• Anti-inflammatory treatment
• Guidance on stretching, activity modification, and follow-up care

If we determine that you need advanced imaging or specialist care, we'll help guide you to the appropriate next step.

Tips to Help Prevent Back Pain

Many episodes of back pain can be prevented by adopting healthy daily habits.

Helpful strategies include:

• Lift with your legs instead of your back.
• Maintain good posture while sitting and standing.
• Stretch regularly, especially if you sit for long periods.
• Strengthen your core muscles.
• Stay physically active.
• Maintain a healthy weight.
• Use proper body mechanics during exercise and work.

Frequently Asked Questions

Can dehydration cause back pain?

Dehydration itself usually does not directly cause back pain, but it can contribute to muscle cramps and may increase the risk of kidney stone formation in some people.

How do I know if my back pain is muscular or kidney-related?

Muscle pain usually worsens with movement and improves with rest, while kidney-related pain is often deeper, located in the flank, and may be accompanied by urinary symptoms, nausea, fever, or blood in the urine.

Can urgent care diagnose kidney stones?

Urgent care can evaluate your symptoms, perform a urinalysis, assess your condition, and determine whether you may need additional imaging or emergency treatment.

How long does a muscle strain usually last?

Many mild muscle strains improve within a few days to a few weeks, depending on the severity and your activity level.

Get Relief from Back Pain Today

Whether your back pain started after lifting something heavy, woke you up in the middle of the night, or is accompanied by urinary symptoms, the team at EZMED Primary & Urgent Care is here to help.

We provide same-day evaluations for back pain, muscle strains, kidney stone symptoms, and many other common conditions. Walk in today or schedule an appointment for prompt, compassionate care close to home in Timonium.