Plantar fasciitis affects roughly 10% of people at some point in their lives, making it one of the most common foot complaints. It accounts for about 80% of all heel pain cases, and the vast majority of those affected, around 83%, are working-age adults between 25 and 65.
Who Gets It Most
While plantar fasciitis can strike at any age, it peaks between 45 and 64, where the point-in-time prevalence sits at about 1.33%. Among younger adults (18 to 44), that figure drops to 0.53%. These numbers reflect how many people have it at any given moment, not over a lifetime, which is why they look smaller than the 10% lifetime figure.
Women are significantly more likely to develop it than men. Females report plantar fasciitis at a rate of 1.19%, compared to 0.47% for males, making them roughly 2.5 times more susceptible. This gender gap holds in athletic populations too, where women are affected slightly more often regardless of whether they compete at an elite or recreational level.
Prevalence in Runners and Athletes
If you run, your risk climbs. The incidence of plantar fasciitis among runners ranges from 4.5% to 10%, placing it as the third most common running-related injury behind shin splints and Achilles tendon problems. Ultra-marathon runners face even higher rates, around 11%. A large study of beginner runners found plantar fasciitis accounted for about 5% of all injuries, trailing shin splints, kneecap pain, meniscal injuries, and Achilles issues.
Beyond running, plantar fasciitis shows up frequently in soccer and basketball. The repetitive impact of jumping and sprinting loads the thick band of tissue along the sole of the foot in ways that make these sports particularly high-risk.
How Body Weight Affects Risk
Carrying extra weight is one of the strongest predictors of developing plantar fasciitis, especially in people who aren’t athletes. A BMI over 30 nearly triples the odds (an odds ratio of 2.675 in one study comparing patients with painful heel spurs to those without symptoms). In that same research, patients with plantar fasciitis had an average BMI of 35.2 compared to 30.9 in the control group. The link between increased BMI and chronic heel pain has been confirmed across multiple systematic reviews, and clinical guidelines from the American Physical Therapy Association specifically note that weight-bearing pain is more common in non-athletic individuals with a high BMI.
How Long It Typically Lasts
Plantar fasciitis has a reputation as a self-limiting condition, but the timeline is longer than many people expect. A follow-up study of 174 patients tracked with ultrasound found that after one year, 80.5% still had the condition. By the five-year mark, about half had resolved. After 10 years, the number holding steady with ongoing symptoms was 45.6%, dropping only slightly to 44% at 15 years.
In practical terms, this means most people won’t see quick relief. The first year is the slowest period of improvement, and a meaningful number of cases become chronic. That said, the severity of symptoms often decreases over time even when the condition hasn’t fully resolved on imaging.
What It Feels Like
The hallmark symptom is a sharp or stabbing pain on the inner side of the heel, worst with the first few steps after getting out of bed or standing up after sitting for a while. This “first-step pain” happens because the tissue along the bottom of the foot tightens during rest and gets abruptly stretched when you put weight on it. Pain also tends to flare after long periods of standing or walking, though it sometimes eases during activity and returns afterward.
Diagnosis is usually straightforward. A doctor will press on the spot where the tissue attaches to the heel bone and may test ankle flexibility, since limited upward motion at the ankle is a common finding. Imaging isn’t needed in clear-cut cases, but if heel pain lingers, a weight-bearing X-ray can rule out other causes like a stress fracture. Ultrasound can confirm the diagnosis by showing thickened tissue (greater than 4 mm) at the insertion point.
Why It’s So Common
The plantar fascia bears enormous loads. It supports the arch with every step and absorbs forces equal to several times your body weight during running. Several factors converge to make this tissue vulnerable in a large slice of the population: age-related loss of flexibility, occupations that require prolonged standing, sudden increases in physical activity, and the rising prevalence of obesity. The combination of a structure that’s under near-constant mechanical stress and a population that increasingly carries more weight and spends more time on hard surfaces creates the conditions for a very common problem.
For perspective, plantar fasciitis is far more prevalent than other well-known musculoskeletal complaints like Achilles tendon problems or rotator cuff tears. Its 10% lifetime prevalence puts it in the same ballpark as low back pain episodes in a given year, making it one of the conditions a person is most likely to encounter over a lifetime of using their feet.