When Pelvic Pain Isn’t Just Gynaecological: Understanding Pelvic Congestion Syndrome

Chronic pelvic pain is often associated with gynaecological conditions - and for good reason.
But not all pelvic pain originates from the reproductive organs.

In some cases, the underlying cause is vascular.

One condition that remains under-recognised is Pelvic Congestion Syndrome (PCS) - a condition involving enlarged pelvic veins that can contribute to ongoing, often unexplained pelvic pain and pressure.

Importantly, PCS can also coexist with conditions like endometriosis and adenomyosis, which can make diagnosis more complex.

What Is Pelvic Congestion Syndrome?

Pelvic Congestion Syndrome occurs when veins within the pelvis become dilated and blood flow becomes sluggish, creating increased venous pressure within the pelvic cavity.

It’s often compared to varicose veins - but internally, around the pelvic organs.

Symptoms can include:

• Dull, aching pelvic pain

• A sensation of heaviness or pelvic pressure

• Pain that worsens after prolonged standing or at the end of the day

• Discomfort during or after intercourse

• Symptoms that fluctuate throughout the menstrual cycle

• Superficial varicose veins (including around the upper thighs, vulva or buttocks)  sometimes even without significant pelvic pain

A key feature of PCS is that symptoms are often relieved by lying down, as this reduces venous pressure in the pelvis.

Why It’s Often Missed

PCS can be difficult to recognise because many of its symptoms overlap with more commonly diagnosed pelvic conditions, including:

• Endometriosis

• Adenomyosis

• Pelvic floor dysfunction

• IBS or bladder-related symptoms

Many people undergo years of investigations before vascular causes are considered.

PCS also remains an area where awareness — and research — is still evolving, meaning it may not always be included in routine pelvic pain assessments.

Importantly, patients may have more than one contributing factor to their pain at the same time.

What Causes PCS?

The exact cause of PCS is still not fully understood, but research suggests it is likely influenced by a combination of factors.

Potential contributors include:

• Genetic predisposition

• Anatomical variations in pelvic veins

• Hormonal influences, particularly estrogen

• Polycystic ovary syndrome (PCOS)

• Previous pelvic surgery

• Varicose veins in the lower limbs

• Heavy lifting or prolonged standing

• Pregnancy-related vascular changes

Studies also suggest that a family history of varicose veins may increase risk, with genetics thought to play a role in many venous conditions.

How Is PCS Diagnosed?

Diagnosis often requires specialised imaging focused on the pelvic veins.

This may include:

• Advanced pelvic ultrasound

• Abdominal ultrasound

• MRI imaging

Because PCS is vascular, it may not always be visible through standard gynaecological investigations alone.

Treatment Options

Management depends on symptom severity and the individual presentation.

Treatment approaches may include:

• Hormonal therapies

• Anti-inflammatory medications (NSAIDs)

• Compression garments, including compression shorts designed for pelvic support

• Pelvic health support

• Interventional procedures such as ovarian vein embolisation

As with many chronic pelvic pain conditions, treatment is rarely one-size-fits-all.

A Broader View of Pelvic Pain

Pelvic pain is rarely caused by a single system in isolation.

It can involve interactions between:

• The reproductive system

• The vascular system

• The nervous system

• The musculoskeletal system

Understanding this complexity is key to improving diagnosis, validation and long-term outcomes.

Why Awareness Matters

Being informed doesn’t mean self-diagnosing.

It means recognising when symptoms don’t quite fit - and knowing what questions to ask.

If pelvic pain is persistent, unexplained, worsened by standing, or relieved by lying down, it may be worth exploring whether vascular contributors could be part of the picture.

More high-quality research into PCS is still needed - particularly around diagnosis and recognition - but awareness is an important first step.

A Multidisciplinary Approach to Care

At Elgin House, we recognise that chronic pelvic pain often requires a multidisciplinary lens.

Our approach may involve:

• Gynaecological assessment

• Pelvic health and musculoskeletal support

• Consideration of vascular and systemic contributors

• Holistic care to support inflammation, pain and overall wellbeing

Because effective care starts with understanding the full picture.

When to Seek Support

If you’re experiencing pelvic pain that:

• Feels difficult to explain

• Has not improved with treatment

• Changes with posture or time of day

• Coexists with visible varicose veins or pelvic heaviness

It may be worth exploring further.

You don’t need to have all the answers - but you do deserve a care team willing to look deeper.

References

• Journal of Clinical Medicine - Pelvic Congestion Syndrome research and vascular contributors

• Annals of Medicine - PCS diagnosis and treatment review

• Cleveland Clinic - Pelvic Congestion Syndrome overview

• Phlebology - Pelvic venous disorder research

• Royal Australian and New Zealand College of Obstetricians and Gynaecologists - Chronic pelvic pain guidance