Psoriatic arthritis knee pain

Inflammation can affect the knee lining, nearby tendon attachments or more than one joint at once. The knee may feel puffy, warm, tender or difficult to bend, while stiffness after rest can distinguish an inflammatory pattern from simple overuse. A knee symptom does not identify its cause on its own. See [Psoriatic Arthritis](/conditions/psoriatic-arthritis/), [Joint Pain](/symptoms/joint-pain/) and [Joint Swelling](/symptoms/joint-swelling/).

Arrange an examination if knee pain keeps returning, lasts beyond a short episode or affects stairs, walking or sleep. Until reviewed, use comfortable movement, avoid forcing a swollen joint and note triggers, duration and associated skin or nail changes. A clinician may consider examination, blood tests or imaging. Discuss [Anti-Inflammatory Medication](/treatments/non-surgical-orthopedics/anti-inflammatory-medication/) and supervised [Physiotherapy](/treatments/physiotherapy-and-rehabilitation/physiotherapy/) to maintain strength without aggravating inflammation.

Seek urgent help if the knee becomes suddenly hot and very swollen, especially with fever or feeling seriously unwell. Get prompt assessment after an injury if you cannot bear weight, the knee changes shape or it locks. Persistent swelling, worsening night pain or reduced movement should receive a timely clinical review.

Could inflammation explain my knee symptoms? Do I need imaging or fluid testing? Which activities are safe during swelling? What is the plan if pain improves but swelling remains?