Quick answer
What is plantar fasciitis?
Plantar fasciitis is pain under the heel caused by irritation of the strong band of tissue (the plantar fascia) that supports the arch of the foot. It is the most common cause of heel pain, classically worst with the first steps of the morning, and usually improves over months with stretching, supportive footwear and activity changes.
What is plantar fasciitis?
Plantar fasciitis is irritation of the plantar fascia — the strong band of tissue running under the foot from heel to toes, supporting the arch. It is the most common cause of heel pain, and while it can be stubborn, the great majority of cases improve with consistent self-care.
Symptoms
The classic pattern is:
- pain under the heel, sometimes spreading along the arch
- worst with the first steps of the morning, or after sitting
- easing as you move, then aching after long standing or activity
What causes it
It is usually a strain-and-overload problem: long hours on your feet, running or sudden increases in activity, unsupportive or worn-out footwear, tight calf muscles, and carrying extra weight can all contribute — often several together.
What genuinely helps
The evidence-backed basics, done consistently:
- stretch the calves and the sole of the foot daily (a physiotherapist or reputable guide can show you)
- wear supportive, cushioned footwear; insoles or heel pads can help
- modify rather than stop activity — reduce the aggravating load while staying active
- ice the heel and use simple pain relief when needed
Improvement is usually gradual over weeks to months — persistence matters more than any single fix. Physiotherapy helps cases that aren’t settling, and further options exist for the stubborn minority.
When to see a GP
See a GP or self-refer to physiotherapy if pain is not improving after a few weeks, is severe, or limits daily life — and sooner if the pain follows an injury, you cannot bear weight, the heel is hot and swollen, or you have numbness or tingling.
Common questions
- Why is the pain worst in the morning?
- Overnight the plantar fascia tightens. The first steps of the day stretch it suddenly, causing the classic sharp morning heel pain that eases as you move — then often returns after rest or long standing.
- What causes plantar fasciitis?
- Repeated strain on the fascia — from running or long periods on your feet, unsupportive footwear, tight calves, sudden increases in activity, or carrying extra weight. Often several small factors add up.
- What is the best treatment?
- Regular calf and foot stretches, supportive footwear or insoles, reducing (not stopping) aggravating activity, ice for pain, and simple pain relief. Most people improve with these over weeks to months; physiotherapy helps stubborn cases.
- How long does plantar fasciitis last?
- It is often a slow burner — many cases settle within a few months of consistent self-care, though some take longer. Persistence with the stretches genuinely matters; further options exist for cases that don't settle.