What Causes Heel Pain? Understanding the Most Common Cause and How Arch Support Can Help
- Salfordinsole
- 1 day ago
- 6 min read

What causes heel pain?
It's one of the most common questions people ask when they suddenly develop pain underneath or around their heel. Whether your heel hurts after exercise, first thing in the morning, after standing all day or simply while walking, the discomfort can quickly begin to affect every aspect of your daily life.
What many people don't realise is that heel pain is often caused by a recognised condition called plantar fasciitis.
Instead of searching for the condition by name, people usually search for questions like:
Why do my heels hurt first thing in the morning?
Why does my heel hurt when I walk?
Pain in the bottom of my heel
Heel pain after exercise
Why does my heel hurt when I get out of bed?
Foot pain after sitting
All of these symptoms are commonly associated with plantar fasciitis.
Understanding why plantar fasciitis develops and the role foot mechanics play for many sufferers can help you make sense of your symptoms and choose treatments that address the underlying cause, rather than simply trying to relieve the pain.
The Most Common Cause of Heel Pain Is Plantar Fasciitis
Heel pain can have several causes, including bruising, tendon injuries, nerve irritation and inflammatory conditions.
However, plantar fasciitis is one of the most common causes of pain underneath the heel, particularly if the pain:
is worst first thing in the morning
eases after walking for a few minutes
returns after sitting down
develops after walking or exercise
gradually becomes more persistent
Many people live with these symptoms for months before discovering that plantar fasciitis is the cause.
Fortunately, once you understand what plantar fasciitis is, it becomes much easier to understand why your symptoms develop.
If you'd like a broader overview of heel pain, including other possible causes and treatment options, you may also find our guide to heel pain helpful.
What Is the Plantar Fascia?
The plantar fascia is a thick, incredibly strong band of connective tissue running along the sole of your foot. It runs from your heel bone to the base of your toes and acts like a supportive cable beneath your arch.
Its job is to:
support the arch of the foot
stabilise the foot while walking
absorb and release energy with each step
help transfer forces efficiently through the foot
Every step you take places tension on the plantar fascia. Normally, this is exactly how the foot is designed to work.
Problems develop when the tissue is repeatedly stretched beyond what it can comfortably tolerate. Over time, this repeated strain can irritate the attachment of the plantar fascia at the heel bone, leading to the pain known as plantar fasciitis.

Why Does Plantar Fasciitis Develop?
Plantar fasciitis usually develops gradually rather than following a single injury.
Several factors can contribute, including:
increased walking or running
prolonged standing
weight gain
calf muscle tightness
ageing
foot biomechanics
One of the most important biomechanical contributors is overpronation.
What Is Overpronation?
Pronation is a normal movement of the foot. As your heel contacts the ground, the foot rolls slightly inwards to absorb impact and adapt to the surface beneath it.
This movement is completely natural.
Overpronation occurs when the foot rolls inwards more than it should. Instead of remaining relatively stable, the arch flattens excessively during each step.

Although this movement may only be a few millimetres, it happens thousands of times every day. For many people, this repeated movement places extra strain on the plantar fascia.
How Does Overpronation Cause Heel Pain?
Imagine the plantar fascia as a strong cable stretched between your heel and your toes. Every time the arch collapses excessively, that cable is pulled slightly tighter.
One step doesn't matter.
Ten thousand steps every day certainly can.
Over months or years, that repeated stretching can overload the plantar fascia, causing pain where it attaches to the heel.
This is why people with overpronation are more likely to experience plantar fasciitis than people whose arches remain more stable during walking.
Why Is Heel Pain Often Worse in the Morning?
One of the classic signs of plantar fasciitis is sharp heel pain when taking your first steps after getting out of bed.
During sleep, the plantar fascia relaxes slightly. When you suddenly stand up and place your body weight through the foot, the irritated tissue is stretched again, producing the familiar stabbing pain beneath the heel.
After walking for several minutes, the tissue becomes more flexible and the pain often improves. The same thing commonly happens after sitting for long periods.
Why Modern Feet Often Need More Support
Our feet evolved over hundreds of thousands of years while walking barefoot across natural environments. Grass, soil, woodland paths and sand all deform under the foot, creating constantly changing loading patterns.
Modern life is very different.
Concrete pavements, tarmac, hard floors, tiles and modern workplaces expose our feet to long periods of walking and standing on rigid, flat surfaces. Many modern shoes, while comfortable and lightweight, provide relatively little structural support beneath the arch.
For people who naturally overpronate, this combination can place the plantar fascia under increased strain throughout the day.
Why Arch Support Can Help
If excessive pronation is increasing tension on the plantar fascia, reducing that excessive movement is a logical part of treatment. This is why arch-support orthotic insoles are commonly recommended for people with plantar fasciitis associated with overpronation.
Unlike simple heel cushions, a supportive orthotic helps maintain the arch during walking and standing. By improving foot mechanics, it can reduce the repeated strain acting on the plantar fascia throughout the day.
Clinical guidelines commonly recommend foot orthoses as one of the conservative treatment options for plantar fasciitis, particularly when excessive pronation is present.
Learn more about how Salfordinsole™ Insoles for Plantar Fasciitis work.
The Research Behind the Salford Insole
Recognising that many commercially available insoles focused mainly on cushioning rather than correcting foot mechanics, researchers from the University of Salford's Foot Biomechanics and Podiatry Group set out to develop a different type of prefabricated orthotic.
Supported by a UK Government-funded research programme, the project combined biomechanics research, podiatry expertise and clinical experience to develop an insole that provided effective arch support and was suitable for everyday footwear.
That work led to the creation of the Salford Insole, which continues to be used throughout the UK podiatry profession.
Several features distinguish the Salford Insole from many standard shoe inserts:
Anatomically contoured arch support designed to reduce excessive pronation
Deep heel cup designed to support the natural heel fat pad
Individual shoe sizing for more accurate arch positioning
Slim, durable construction suitable for most everyday footwear
Rather than relying on extra cushioning beneath the heel, the design focuses on improving foot mechanics and reducing one of the mechanical contributors commonly associated with plantar fasciitis.
Learn more about Salfordinsole™ Insoles for Plantar Fasciitis.
Frequently Asked Questions
Is plantar fasciitis the most common cause of heel pain?
It is one of the most common causes of pain beneath the heel, particularly when symptoms are worst first thing in the morning or after periods of rest.
What causes plantar fasciitis?
Several factors can contribute, but excessive pronation is recognised as an important biomechanical contributor in many people because it increases strain on the plantar fascia.
Why does my heel hurt after walking?
Walking places repeated strain on the plantar fascia. If the tissue is already overloaded, symptoms often become more noticeable during or after activity.
Why does my heel hurt when I get out of bed?
Sharp heel pain with your first few steps in the morning is one of the hallmark symptoms of plantar fasciitis because the plantar fascia is suddenly stretched when you first stand after resting overnight.
Are soft gel heel pads enough?
Gel heel pads mainly provide cushioning beneath the heel. For people whose plantar fasciitis is associated with excessive pronation, an orthotic that supports the arch can better address the underlying mechanical contributor.
Should I try arch-support insoles?
If you have symptoms consistent with plantar fasciitis and your foot tends to overpronate, supportive orthotic insoles are commonly recommended as part of conservative treatment because they reduce strain on the plantar fascia during everyday activities.
Why choose the Salford Insole?
The Salford Insole was developed from biomechanics research carried out by the University of Salford's Foot Biomechanics and Podiatry Group. Rather than focusing on cushioning alone, it was designed to provide structured arch support that helps improve foot mechanics and reduce excessive pronation - a recognised mechanical contributor to plantar fascia overload in many people.
Final Thoughts
Heel pain is incredibly common, but it doesn't have to become a permanent part of your life.
For many people, heel pain is caused by plantar fasciitis, a condition that often develops gradually and is closely associated with repeated strain on the plantar fascia. While several factors can contribute, excessive pronation is an important mechanical contributor for many sufferers.
Understanding the role of foot biomechanics makes it easier to see why structured arch support can play an important role in treatment. If overpronation is contributing to your heel pain, using a well-designed orthotic such as the Salfordinsole™ Insoles for Plantar Fasciitis can help support your arches, reduce repetitive strain on the plantar fascia and allow you to walk, work and exercise more comfortably.



