Plantar fasciitis, which is particularly common in runners, causes a stabbing pain that occurs with your very first steps in the morning. Once the affected foot limbers up, the pain of plantar fasciitis normally decreases, but it may return after standing for a long period or getting up from a seated position.
Aside from runners, people who are overweight, people who do a lot of standing on hard surfaces (teachers, factory workers, etc.), and those who wear shoes with inadequate support are at risk of plantar fasciitis.
Unfortunately, symptoms often return in a high percentage of patients when treated in this fashion. While surgery to cut the plantar fascia is an option, it often results in a gradual destruction of the arch, which can eventually collapse.