What should you know about plantar fasciitis and psoriatic arthritis?

Plantar fasciitis affects the strong band beneath the foot and is often linked with mechanical loading. Psoriatic arthritis is an inflammatory condition that can affect joints and entheses, the places where tendons or ligaments attach to bone. Heel or arch discomfort may therefore occur alongside joint pain, swelling, or morning stiffness. Skin or nail psoriasis, symptoms in several areas, or stiffness that lasts well after getting up are useful details to mention. Foot pain alone cannot identify which process is present.

Record when pain and stiffness occur, which joints swell, and whether activity or rest changes the symptoms. Use supportive shoes and choose gentle movement that does not provoke a flare. If psoriatic arthritis is known or suspected, coordinate care with the clinician managing inflammation; physiotherapy can help preserve foot and joint movement. Do not start, stop, or change anti-inflammatory medication without medical guidance.

Book a medical review for new persistent heel or arch pain with joint swelling, repeated morning stiffness, or symptoms affecting more than one area. Seek urgent advice for a hot, very swollen joint with fever, sudden inability to bear weight, major injury, or rapidly worsening pain. Early assessment helps separate mechanical overload from inflammatory activity and other causes.

Ask whether your pattern suggests plantar fascia irritation, psoriatic arthritis activity, or both. Discuss whether joint or tendon examination, blood tests, or imaging would help, and ask how exercise, physiotherapy, and anti-inflammatory treatment should fit together.