If the first few steps out of bed send a sharp pain through your heel, plantar fasciitis is the most likely cause. It is the most common reason people see someone about heel pain, and while it can be stubborn, the great majority of cases settle with the right approach. Here is what it is, why it happens, and what actually helps it heal.
What plantar fasciitis is
The plantar fascia is a thick band of connective tissue that runs along the sole of the foot, from the heel bone to the base of the toes, and it helps support the arch. Plantar fasciitis is an overload problem at the point where that band attaches to the heel. The older name carries an "itis" ending, which implies inflammation, but the tissue change is actually degenerative rather than inflammatory, which is why you will sometimes see it called plantar fasciopathy. This is why anti-inflammatory approaches alone often disappoint, and why the real fix is restoring the tissue's capacity to handle load.
Around one in ten people will experience it at some point in their lives. It is most common between the ages of about 45 and 64, slightly more so in women, and it turns up just as often in people who spend long hours on their feet as it does in runners.
What it feels like
The hallmark is a sharp, stabbing pain under the inside of the heel that is at its worst with the first few steps in the morning or after sitting for a while. It often eases after a few minutes of walking, then creeps back towards the end of a long day on your feet. The pain is usually well localised to one spot and does not burn or shoot, which helps separate it from nerve-related heel pain.
Why it happens
Plantar fasciitis is usually an overload problem rather than a single injury. Common contributors include:
- A sudden increase in running distance, speed or hill work
- Long hours standing on hard surfaces
- Tight calves and limited ankle movement, which is one of the strongest and most fixable contributors
- Worn or unsupportive footwear
- A higher body weight, and foot types with either a high or a flat arch
How it is diagnosed
In most cases the diagnosis is clinical, made from the story of first-step pain and tenderness at the exact spot where the fascia meets the heel, confirmed by a simple test that loads the fascia by bending the toes back. Scans are not usually needed. Ultrasound can show thickening of the fascia where it is overloaded, and is reserved for cases that are not behaving as expected, or where something else is suspected. An X-ray may show a heel spur, but a spur is usually an incidental finding rather than the source of the pain, so it does not change the plan.
What else heel pain can be
Most heel pain is plantar fasciitis, but not all of it, and part of a careful assessment is ruling out the conditions that mimic it, because they need different management. A heel-bone stress fracture causes deeper pain that hurts on impact and does not ease after the first few steps. The fat pad under the heel can become irritated, giving a deep, bruise-like ache that is worse barefoot on hard floors. Nerve-related causes, such as entrapment of a small nerve in the heel, produce burning or tingling rather than a sharp local pain, and account for a meaningful share of stubborn cases. Heel pain in both feet at once, or alongside other swollen joints, can occasionally point to an inflammatory cause that needs a different pathway. This is why an accurate diagnosis comes first, rather than simply treating every heel as a fascia problem.
How plantar heel pain is treated
The encouraging news is that most cases settle without injections or surgery. The foundation of treatment is not rest, it is the right kind of loading, supported by sensible offloading while the tissue recovers.
Load management and footwear
The first step is to settle the aggravation without stopping completely. That means easing back on the activities that flare it, reviewing footwear so the heel is supported, and using arch support or short-term taping to take some strain off the fascia. For people whose pain is worst first thing, a night splint can help reduce that first-step pain.
Stretching and strengthening
Releasing the calf and the fascia takes tension off the heel, and limited ankle movement is one of the biggest contributors worth addressing. Beyond stretching, the part that changes the course of the problem is loading the fascia progressively, for example with heel raises performed with the toes propped up, which builds the tissue's capacity to take load again. This is the work that prevents it coming back, and it is usually what gets skipped.
Where shockwave therapy fits
When heel pain has been present for more than three to six months and has not settled with loading and the measures above, shockwave therapy is one of the best-supported next steps. Plantar heel pain is, in fact, the condition with the strongest evidence behind shockwave, with research showing meaningful reductions in pain. It works by stimulating a stalled healing response and calming the pain enough to let the loading programme do its work, which is why it is used alongside the exercises, not in place of them. You can read more about how shockwave therapy works and the conditions it suits.
Warning signs to watch for
- Heel pain that follows a sharp increase in running or jumping and becomes a deep ache that hurts on impact and does not ease after the first few steps, which can point to a bone stress problem rather than the fascia
- Burning, tingling, numbness or electric pain under the heel or arch, especially if it builds through the day, which suggests a nerve cause
- Pain in both heels at once, or heel pain alongside other painful or swollen joints, skin rashes, or eye or bowel symptoms, which can signal an inflammatory cause
- Any heel pain with fever, redness, warmth or feeling unwell, which needs prompt attention
- Pain that is constant, present at rest and at night, or that comes with unexplained weight loss
- Heel pain that has not improved at all after three to six months of appropriate treatment, which is a reason to re-examine the diagnosis rather than repeat the same approach
What to expect from treatment
The outlook is good. With the right treatment, about 80 percent of people improve within a year. The main frustration is the timescale, because the fascia can be slow to settle, and recurrence is possible if the underlying causes, the training load, the footwear, the tight calves, are not addressed. That is why the plan is built around restoring capacity and fixing what overloaded the fascia in the first place, not just chasing the pain.
Common questions
How long does plantar fasciitis take to heal?
Most cases improve over several months, and around 80 percent settle within a year with the right approach. Early relief is common, but the lasting change comes from consistent loading and addressing what caused it.
Should I rest completely?
No. Complete rest tends to slow recovery. The aim is to ease back on what flares it while keeping the foot loaded sensibly, then build capacity back up.
Does the heel spur cause the pain?
Usually not. Heel spurs are often found on X-rays of people with no pain at all, so a spur on its own does not change the treatment.
Is shockwave therapy worth it for heel pain?
For heel pain that has not settled after a few months, shockwave has the strongest evidence of any of its uses. It works best combined with a loading programme rather than on its own.
If heel pain is interfering with your day, or it is not settling the way you would expect, it is worth having it properly assessed so the right plan can be put in place. Book a visit and we will work out what is driving it and how to settle it.
