Can Achilles Tendonitis Cause Plantar Fasciitis? While Achilles tendonitis and plantar fasciitis are distinct conditions, they can sometimes co-occur or mutually influence foot discomfort. In the realm of musculoskeletal disorders, Achilles tendonitis and plantar fasciitis are two common conditions that can cause significant pain and discomfort. Both ailments primarily affect the lower extremities, specifically the foot and ankle regions. While they are distinct conditions, there is some … [Read more...]