Sacroiliac Joint Pain: Causes, Symptoms, Diagnosis & Treatment
Phywell Physiotherapy Team2026-08-13T08:29:56+00:00Pain around the lower back or buttock can be surprisingly difficult to figure out. Sometimes the spine is responsible. Sometimes the hip is involved. And sometimes the pain is coming from the sacroiliac joint, the small joint where the lower spine connects with the pelvis.
This is one reason people looking for the best physiotherapy in Delhi should not simply pick exercises based on where they feel pain. The same area can hurt for very different reasons, and the right treatment starts with understanding what is actually causing the problem.
The sacroiliac joints sit on either side of the sacrum, connecting it to the ilium of the pelvis. They don’t move very much, but they have an important job: helping transfer the load between your upper body and legs.
When something irritates the joint or the tissues around it, you may notice pain in the lower back, buttock, hip or upper leg. And yes, it can sometimes feel enough like sciatica to make things confusing.
What Is Sacroiliac Joint Pain?
Sacroiliac joint pain is pain that comes from the SI joint or the structures around it. You have two SI joints, one on the left and one on the right, where the sacrum meets the pelvis.
The joint has a small range of movement. Its job isn’t to swing around like your shoulder or hip. Instead, it helps provide stability and transfer forces as you stand, walk and move.
There are several reasons the area can become painful. A fall, heavy lifting, repetitive sports activity, pregnancy, arthritis and inflammatory conditions can all play a role. Sometimes, though, there isn’t one obvious event that started the pain.
That is where SI joint dysfunction comes into the picture. But don’t assume that every ache near the pelvis is automatically SI joint dysfunction. Lower back, hip and leg pain have a long list of possible causes.
Also Read: Hip Pain After 40: Common Causes, Symptoms & Physiotherapy Solutions
What Does SI Joint Pain Feel Like?
There isn’t one exact description that fits everyone.
Some people describe a deep ache in one buttock. Others feel pain close to the lower back or the back of the hip. It may stay in one spot or travel toward the thigh or leg.
Common sacroiliac joint symptoms can include:
- Pain around one side of the lower back or buttock
- Pain around the back or side of the hip
- Stiffness after sitting for a long time
- Pain when getting up from a chair
- Discomfort while climbing stairs
- Pain when standing for a long period
- Increased pain when putting more weight on one leg
- Discomfort when turning over in bed
- Pain during running or other activities
Mayo Clinic notes that SI joint pain can become worse with prolonged sitting or standing, running, climbing stairs, turning in bed and shifting weight onto one leg.
Where Is Sacroiliac Joint Pain Located?
The sacroiliac joint pain location is usually around the lower back and buttock, close to where the pelvis meets the spine. It can also be felt around the hip, thigh or sometimes farther down the leg.
This is one reason people sometimes mistake SI joint pain for a hip problem or sciatica.
Pain location gives a clinician useful information, but it isn’t enough on its own to identify the source. Your movement, symptoms, medical history and physical examination all matter.
What Causes Sacroiliac Joint Pain?
There isn’t a single answer to the question, Why does my SI joint hurt?
Injury and Physical Strain
A fall directly onto the buttocks, a car accident or heavy lifting can put considerable stress through the SI joint. Repetitive activities such as jogging and certain sports can also aggravate the area.
You don’t necessarily have to remember one dramatic injury, either. Sometimes symptoms build gradually after repeated loading.
Pregnancy and Postpartum Changes
Pregnancy changes the way the pelvis carries weight and handles movement. The SI joints can also become more mobile during this period, which may contribute to discomfort in some people.
SI joint problems can occur during pregnancy and after childbirth.
Arthritis
Osteoarthritis can affect the SI joint. Inflammatory arthritis can affect it as well.
This is where sacroiliac joint inflammation and sacroiliitis need to be distinguished from ordinary mechanical SI joint pain. Sacroiliitis means inflammation of one or both SI joints and can be associated with inflammatory conditions such as ankylosing spondylitis.
Other Possible Contributors
Previous spinal surgery, differences in leg length, scoliosis and some systemic inflammatory conditions may also contribute to SI joint symptoms. Sometimes no clear cause can be identified.
How Is SI Joint Pain Diagnosed?
This is where things get more interesting.
There isn’t one simple scan that says, Yes, that’s your SI joint.
An SI joint pain diagnosis usually starts with your medical history and a physical examination. A clinician will want to know when the pain began, whether there was an injury, what movements make it worse and whether you have symptoms such as numbness, tingling or weakness.
The lower back, hips, pelvis and neurological system may all be examined because several conditions can produce similar symptoms.
SI Joint Provocation Tests
A clinician may use several SI joint provocation tests during the examination.
These tests place controlled stress through the SI joint to see whether they reproduce your familiar pain. Examples include the thigh thrust, distraction, compression, Gaenslen and sacral thrust tests.
One test by itself isn’t particularly convincing. AAFP recommends using a combination of provocation tests when SI joint dysfunction is suspected.
Do You Need an MRI or X-Ray?
Not necessarily.
An X-ray, MRI or CT scan may be useful when a clinician needs to investigate another condition or look for particular structural or inflammatory changes. But imaging alone does not automatically establish that the SI joint is the source of someone’s pain.
In selected cases, a diagnostic injection may also be used. A numbing medication placed into the SI joint can help determine whether the joint is contributing to the pain.
How Is Sacroiliac Joint Pain Treated?
The best sacroiliac joint pain treatment depends on why the pain is happening in the first place.
There is no universal best SI joint exercise. A movement that feels helpful to one person may irritate another, particularly when the underlying problem is different.
For many people with mechanical SI joint dysfunction, conservative care is the starting point. AAFP recommends physical therapy exercise programs, SI joint manipulation, or a combination of approaches as part of initial management.
Physiotherapy for SI Joint Pain
Physiotherapy for SI joint pain generally aims to get you moving better while improving the strength and control of the muscles supporting the pelvis and hips.
Depending on your assessment, treatment may involve:
- Pelvic stabilization
- Hip and gluteal strengthening
- Core strengthening
- Flexibility work
- Movement-control exercises
- Manual therapy where appropriate
- Gradual return to normal activities
The important word here is individualized.
At Phywell Physiotherapy, located in Shalimar Bagh, treatment for musculoskeletal conditions is built around the person’s symptoms, physical findings and lifestyle. The aim is not simply to chase the painful spot for a few sessions. Rehabilitation should help you regain comfortable movement and return to the activities that matter to you.
SI Joint Pain Exercises
If exercises are appropriate for your condition, SI joint pain exercises may include pelvic stabilization, hip strengthening, gluteal strengthening and controlled mobility work.
The progression matters just as much as the exercise itself.
For example, someone who struggles with basic weight-bearing may need a very different starting point from someone who only develops pain while running. Giving both people the same exercise sheet doesn’t make much sense.
That is why sacroiliac joint exercises should ideally be selected after an assessment rather than copied from a random online list.
How Can You Get SI Joint Pain Relief at Home?
When you’re hurting, the temptation is usually to stop moving completely.
That isn’t always helpful.
For uncomplicated musculoskeletal pain, sensible activity modification is generally preferable to simply staying in bed. You can reduce or temporarily modify activities that clearly aggravate your symptoms while continuing comfortable movement as tolerated.
Heat or cold may also provide temporary sacroiliac joint pain relief for some people. The useful question is not which one is universally better? but rather “Which one makes me feel more comfortable?
If the pain keeps returning despite these changes, that’s a good reason to stop experimenting and get the problem assessed.
SI Joint Pain vs Sciatica: Are They the Same?
No, although they can feel similar.
SI joint pain vs sciatica is a common source of confusion because both conditions can cause pain around the buttock and leg.
Sciatica involves irritation or compression of nerves that contribute to the sciatic nerve. It can produce radiating pain along with symptoms such as tingling, numbness or weakness.
SI joint pain usually centers more around the lower back, buttock and pelvic region, although pain can travel into the thigh or leg as well.
So if someone says, My pain goes down my leg, therefore I have sciatica, that’s not enough to make the diagnosis.
A proper assessment is much more useful than guessing from one symptom.
Can a Physiotherapist or Chiropractor Help?
Depending on the diagnosis, both physiotherapy and chiropractic care may form part of a musculoskeletal treatment plan.
The bigger issue is choosing the right approach for the right problem.
If you’re searching for the best chiropractor in Delhi, don’t judge a practitioner solely by a title or a promise of instant relief. Look for someone who takes your history, examines you properly, explains what they think is happening and knows when further medical assessment is necessary.
The same principle applies when looking for the best physiotherapy in Delhi.
At Phywell Physiotherapy, the team works with musculoskeletal concerns including back, neck, shoulder and knee problems, along with rehabilitation and chiropractic care. Treatment is designed around the individual’s condition rather than using one identical plan for everyone.
When Should You Get Your Pain Checked?
If the pain is persistent, keeps returning or is beginning to interfere with sleep, walking, work or everyday activities, it is worth getting an assessment.
Don’t ignore symptoms simply because they are probably just a pulled muscle.
You should seek medical attention promptly if back or pelvic pain comes with significant weakness, bowel or bladder changes, fever, unexplained weight loss, major trauma or other concerning neurological symptoms.
These symptoms can point toward problems that need a medical evaluation rather than routine SI joint rehabilitation.
Also Read: 11 Best Sleeping Positions for Lower Back and Hip Pain
Sacroiliac Joint Pain: When to Seek Treatment and What to Do Next
You might feel it in your buttock and assume it’s your hip. You might feel it down your leg and assume it’s sciatica. Or you might wake up with lower back pain and blame the mattress. Sometimes those guesses are right. Sometimes they’re not.
The sacroiliac joint pain location, your symptoms, what triggers the pain, your medical history, and the findings from a physical examination all help build the bigger picture.
If your pain isn’t settling or keeps coming back, getting the source properly assessed is usually a better strategy than continually changing exercises.
At Phywell Physiotherapy, Shalimar Bagh, Delhi, you can get an individualized assessment and physiotherapy plan based on your symptoms, movement, and daily needs. The focus is on helping you manage pain, improve mobility, and work toward a comfortable return to your normal activities.
Ready to understand what’s causing your SI joint pain? Contact Phywell Physiotherapy today to discuss your symptoms and take the next step toward appropriate care.

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