Symptoms and Causes

Symptoms of a sacroiliac joint problem include:

  • Lower back and buttock pain that can radiate to the groin and leg
  • Standing for lengthy periods of time, climbing stairs, and rolling over in bed cause pain.
  • Lower back discomfort (located, in particular, under the dimples in your lower back)

The majority of cases of sacroiliac joint discomfort are caused by the following factors:

  • Stiff joints and bad posture
  • Asymmetrical activities, such as crossing your legs, changed leg mechanics, resulting in a substantial leg length difference, for example (most of us have a slight discrepancy, which is normal).
  • Muscular inconsistencies

During your initial consultation, your clinician will be able to assess for these contributing factors.

Other factors to consider are:

  • Systemic Inflammatory Illnesses
  • Pregnancy
  • Trauma 
  • Infection 

Treatments for Sacroiliac joint

  • Cortisone injections in the sacroiliac joint can provide relief from inflammation and pain by reducing swelling and suppressing the immune response in the affected area.

  • Hyaluronic acid in the sacroiliac joint helps maintain joint lubrication and cushioning, supporting smoother movement and potentially reducing discomfort.

Let's start your journey with us:

  • Call us on 020 8870 8761 or email us at: to book your appointment.
  • If you will benefit from our services, then the next steps would be:
  • Comprehensive Musculoskeletal examination and testing.
  • Ultrasound scan (if required) to have clarity about why you are in pain.
  • Same day treatment.
  • Fixed fee structure so you can plan your expenses. 


The ilium and the sacrum form the sacroiliac joint, which links the lower back to the pelvis (2 bones which form part of the pelvis). The sacroiliac joints are located on the left and right sides of the spine, respectively. Men and women of various ages are affected by sacroiliac joint discomfort, however it is most common in active females aged 20-40. It’s also frequent in pregnant women and athletes.

Inflammatory disorders such as Ankylosing Spondylitis can affect the sacroiliac joint (AS). Sacroiliitis occurs when the sacroiliac joint gets inflamed.

If your symptoms do not match this, there are a number of additional disorders that can cause sacroiliac joint discomfort, including:

  • Piriformis syndrome
  • Osteoarthritis of the hip
  • Impingement of the femoroacetabular joint in the hip (FAI)
  • Low back pain caused by a disc
  • Facet joint pain in the lumbar spine

Osteoarthritis of the hip is a degenerative joint disease characterised by the loss of articular cartilage. It can be excruciatingly painful, and it’s frequently accompanied by joint stiffness, especially first thing in the morning. The front of the hip is frequently the site of pain (in the crease of the hip and into the groin). It’s a common ailment that affects people in their 50s and 60s, and it usually gets worse as they get older. Pain in the lower back and into the gluteal region is caused by sacroiliac joint pain (buttocks).

People who suffer from sacroiliac joint discomfort are typically younger than those who suffer from hip osteoarthritis. People with sacroiliac joint pain are often between the ages of 20 and 40. Pregnant women, athletes, and persons with inflammatory illnesses like Ankylosing Spondylitis (AS) are more likely to experience sacroiliac joint pain.

Men and women of various ages are affected by sacroiliac joint discomfort, however it is most common in active females aged 20-40. Sportspeople, pregnant women, and people with underlying inflammatory disorders like Ankylosing Spondylitis are also at risk (AS).

The largest joint in the body, the sacroiliac joint, is a typical source of chronic low back discomfort. It has an unusual C form that connects the spine to the pelvis bone. On each side, you have one joint. The sacroiliac joint and its accompanying ligaments, like other joints in the body, can be injured or inflamed. Sacroiliitis is a disorder connected with the sacroiliac joint that we see in the clinic and can be extremely painful (see image below).

Although the pain originates from the same joint, these phrases are commonly used interchangeably.

Sacroliac Joint Dysfunction – Abnormal mechanics between the two sides of the pelvis induce sacroiliac joint dysfunction (known as the ilium). There may be too much or too little movement on one side. Increased stress and shearing pressures on one side result from the asymmetry, which can cause joint discomfort and pain.

Sacroiliitis-an inflammation of the sacroiliac joint. Inflammation is indicated by the term ‘itis.’ This can happen as a result of sacroiliac joint dysfunction or as a side effect of a systemic inflammatory disease (more later). Sacroiliitis produces persistent pain, which is sometimes worse at night, as well as morning agony and stiffness.

If the sacroiliac joint is the source of discomfort, a clinical examination will include a variety of orthopaedic and mobility tests, as well as detailed probing of the joint and surrounding ligaments. If the sacroiliac joint is the source of the pain, more imaging tests will be performed. Changes in inflammation and degeneration will be visible on X-ray and MRI imaging. An MRI scan will be used to detect sacroiliitis.
It’s not always easy to tell the difference between sacroiliac joint discomfort and other types of low back pain. According to studies, sacroiliac joint pain accounts for 10-30% of all chronic low back pain causes. Remember that sacroiliac joint discomfort can start in the buttocks and spread to the low back, groyne, hip, or leg. This is comparable to the causes of other types of back pain.
It is an understatement to say that diagnosing sacroiliac joint discomfort is difficult for many doctors, yet a correct diagnosis is necessary for effective treatment. At Joint Injections, we think that prompt diagnosis is critical to ensure that you receive the appropriate therapy at the appropriate time, avoiding unnecessary discomfort.

Medication, rest, activity adjustment, and physiotherapy will help most cases of sacroiliac pain and sacroiliitis. Anti-inflammatory drugs can help you control your pain while still allowing you to participate in your recovery. In tough cases that do not respond to rehabilitation, such as those diagnosed as sacroiliitis on imaging, an injection may be required to assist reduce the discomfort. Cortisone (steroid) injections in the sacroiliac joint were found to be efficacious in 80% of patients and to endure for an average of 8 months in a recent study.

The needle is traditionally directed into the joint using an X-ray guided sacroiliac joint injection. Ultrasound has lately been used to aid precise needle placement at a lower cost and with no radiation.

Joint Injection’s experts are dual-trained, highly specialised physiotherapists and musculoskeletal sonographers with extensive experience diagnosing all Hip and pelvis disorders. We provide a ‘one-stop’ clinic, which means you’ll get an examination, a diagnostic ultrasound, and, if necessary, an ultrasound-guided injection.