SI Joint Pain Explained: The Hidden Cause of Lower Back Pain

What Is the SI Joint?

The sacroiliac (SI) joints are located where the lower spine connects to the pelvis. These joints play an important role in supporting the upper body and transferring weight to the lower body.

When the SI joint becomes irritated or inflamed, it can lead to discomfort that is often mistaken for other types of back pain.

What Causes SI Joint Pain?

SI joint pain can develop for a variety of reasons, including:

• Joint inflammation
• Injury or trauma
• Degenerative changes
• Repetitive stress
• Changes in movement patterns

In some cases, it may occur alongside other spine conditions, making diagnosis more complex.

Common Symptoms of SI Joint Dysfunction

Symptoms may include:

• Pain in the lower back
• Pain in the hips or buttocks
• Discomfort when standing or walking
• Pain that worsens with certain movements
• Difficulty sitting for long periods

Because these symptoms can overlap with other conditions, proper evaluation is important.

Why SI Joint Pain Is Often Misdiagnosed

SI joint pain is sometimes mistaken for conditions like:

• Herniated disc
• Sciatica
• Lumbar spine issues

This is because the symptoms can feel very similar. Identifying the exact source of pain is a key step in determining the right treatment approach.

How SI Joint Pain Is Diagnosed

A thorough evaluation may include:

• Review of symptoms
• Physical examination
• Imaging studies (if needed)
• Diagnostic injections to confirm the source of pain

The goal is to determine whether the SI joint is truly responsible for the symptoms.

Treatment Options for SI Joint Pain

Treatment depends on the severity and cause of symptoms. Options may include:

• Physical therapy
• Activity modification
• Anti-inflammatory treatments
• Targeted injections
• Regenerative or stabilization approaches (when appropriate)

Each treatment plan is tailored to the individual patient.

SI Joint Pain Treatment in San Antonio

Patients in San Antonio experiencing lower back or hip pain may benefit from an evaluation to determine whether the SI joint is the source.

At MD Spine Care, care focuses on identifying the cause of pain and developing a treatment plan based on each patient’s specific condition.

Internal Linking (IMPORTANT)

👉 Explore related spine conditions and treatment options here:
https://www.mdspinecare.com/spine-procedures-san-antonio

SI joint pain is a common but often overlooked cause of lower back discomfort. Because symptoms can mimic other spine conditions, a proper evaluation is essential for identifying the source and determining appropriate treatment options.



Understanding the cause of your pain is the first step toward finding the right path forward.