What causes plantar fasciitis and how is it treated?

If your first few steps out of bed feel like walking on a bruise, you are not alone. Plantar fasciitis, now often called plantar heel pain, is one of the most common reasons people see a health professional about their feet. It often affects runners, people who stand all day at work, and anyone who has recently changed their activity or footwear.

The good news is that most people improve with conservative care, although it can take several months. Understanding what is driving the pain is the first step to settling it down and getting back to the things you enjoy.

What is the plantar fascia?

The plantar fascia is a thick band of connective tissue that runs along the sole of your foot, from the heel bone to the base of the toes. It supports the arch and helps the foot act like a spring when you walk, run and jump.

When the load on the fascia is more than it can currently tolerate, the tissue near the heel can become irritated and sensitive. Research suggests this is more of a degenerative, overload problem than a purely inflammatory one, which is why the term "plantar fasciopathy" is sometimes used.

What causes plantar fasciitis?

There is rarely a single cause. More often, several factors build up over time until the fascia becomes painful. Common contributors include:

  • A sudden increase in walking, running or standing, such as a new job, a holiday or a new training program

  • Tight or weak calf muscles, which increase the strain through the heel and arch

  • Reduced ankle flexibility, particularly the ability to bend the ankle upwards

  • Footwear that is worn out, very flat, or a sudden switch to minimal shoes or thongs

  • Higher body weight, or recent weight gain

  • Long periods on hard surfaces, such as concrete floors at work

  • Age, with plantar heel pain most common between about 40 and 60

Your calf is closely linked to the plantar fascia. If you also have tightness there, our page on calf muscle pain may be helpful.

What does plantar fasciitis feel like?

The classic sign is sharp pain under the heel with the first steps in the morning, or after sitting for a while. It often eases as you warm up, then returns as an ache later in the day, especially after long periods on your feet.

The pain is usually on the inner side of the heel and may be tender to press. Some people notice it most after exercise rather than during it. You can read more about symptoms and assessment on our foot pain and plantar fasciitis page.

How is plantar fasciitis diagnosed?

Plantar fasciitis is usually diagnosed from your history and a physical examination. Your practitioner will ask about your activity, footwear and work, then assess your foot, ankle, calf strength and the way you walk.

Imaging such as ultrasound or X-ray is not always needed. It may be recommended if the diagnosis is unclear, if symptoms are not improving as expected, or if another condition such as a stress fracture or nerve irritation is suspected. A heel spur on X-ray is common and does not necessarily mean it is the source of your pain.

How is plantar fasciitis treated?

Treatment aims to calm the irritated tissue, then gradually build its capacity to handle load again. Research suggests a combination of approaches tends to work better than any one thing on its own. A typical plan may include:

  • Load management: temporarily reducing aggravating activities, such as long runs or standing barefoot on hard floors, without stopping activity altogether

  • Strengthening: progressive calf and foot exercises, including slow, heavy heel raises, which research suggests may help many people with plantar heel pain

  • Stretching: calf and plantar fascia stretches, particularly before the first steps in the morning

  • Footwear and taping: supportive, cushioned shoes and low-dye taping can reduce strain in the short term

  • Orthoses or heel cups: some people find off-the-shelf or custom insoles helpful while symptoms settle

  • Hands-on care: soft tissue work, joint mobilisation or dry needling may help with pain and calf tightness as part of a broader plan

For persistent cases, your practitioner may discuss options such as shockwave therapy or a referral back to your GP. Corticosteroid injections can provide short-term pain relief for some people, but they carry risks and are generally considered alongside, not instead of, an exercise program. A physiotherapist can help you work out which combination suits you, and if you run, a running assessment may help identify training or technique factors.

How long does plantar fasciitis take to get better?

Recovery time varies a lot. Some people notice improvement within a few weeks of changing their load and starting exercises, while others take six to twelve months. Symptoms that have been present for a long time often take longer to settle.

Consistency matters more than intensity. Flare-ups are common along the way and do not mean you are back at square one.

When should you see a GP or seek urgent care?

Heel pain is usually not serious, but some symptoms need prompt medical review. See your GP or seek urgent care if you have:

  • Heel pain after a fall or impact, or you cannot put weight on the foot

  • Swelling, redness and warmth, especially with fever or feeling unwell

  • Numbness, tingling or burning in the foot

  • Pain that is worse at night or at rest, or unexplained weight loss

  • Pain in both heels along with stiffness or swelling in other joints

  • Diabetes and any new foot pain, wound or change in sensation

Frequently asked questions

Should I stop exercising if I have plantar fasciitis?

Usually not completely. Many people do well by reducing aggravating activities and swapping in lower impact options such as cycling or swimming while they build strength. Complete rest can reduce the fascia's tolerance to load, which may make returning to activity harder.

Do I need custom orthotics?

Not everyone does. Some people find orthoses or heel cups help reduce pain in the short term, but research suggests they are more useful combined with strengthening and load management. Your practitioner can help you decide whether they are worth trying.

Can I claim plantar fasciitis treatment on private health?

Many private health extras policies include physiotherapy, osteopathy, chiropractic or remedial massage, and The Good Joint offers on-the-spot claiming through HICAPS. Rebates depend on your fund and level of cover, so check with your fund first.

Getting help on the Gold Coast

If heel pain is making mornings miserable or keeping you from your usual activities, our team at The Good Joint in Mermaid Beach can assess your foot and lower leg and help you build a practical, step by step plan. No referral is needed for most appointments. You can book online or learn more about our plantar fasciitis care.

Related reading: What helps Achilles tendinopathy, and what should you avoid? and What causes shin splints and how do you get back to running?

Dr Victoria Lohman

Originally from the USA, Victoria's background as an ex-NCAA collegiate volleyball player from Penn State University reflects her deep passion for fitness and sports and the strong sense of community they foster.

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