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Published on: 5/22/2025

What Could Cause Sharp Pain in the Kneecap?

Sharp pain in the kneecap can come from injury or overuse that affects the bones, cartilage, or tendons around the knee. It might be due to conditions like patellofemoral pain syndrome, chondromalacia patella, or jumper’s knee.

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Explanation

Sharp pain in the kneecap can happen for several reasons. One common cause is patellofemoral pain syndrome, where the kneecap does not move properly over the thigh bone, leading to pain during activities. Chondromalacia patella occurs when the cartilage under the kneecap gets softened or damaged, causing a sharp pain when the knee is in motion or under pressure. Another possibility is jumper's knee, where the tendon connecting the kneecap to the shin becomes inflamed, often seen in people who perform a lot of jumping or running. Additionally, a sudden twist or impact during sports or daily activities may injure the tissues around the kneecap. These conditions are generally linked to overuse or misalignment of the knee, though injury can also be a factor. If you experience ongoing sharp pain in your kneecap, it is important to consult a healthcare professional to determine the exact cause and receive the proper treatment.

(References)

  • Misseri G, Gregoretti C, Lo Bianco G. Review of Evaluation and Treatment of Knee Pain. JAMA. 2024 Feb 27;331(8):706-707. doi: 10.1001/jama.2023.27754. PMID: 38411652.

  • Crossley KM, Stefanik JJ, Selfe J, Collins NJ, Davis IS, Powers CM, McConnell J, Vicenzino B, Bazett-Jones DM, Esculier JF, Morrissey D, Callaghan MJ. 2016 Patellofemoral pain consensus statement from the 4th International Patellofemoral Pain Research Retreat, Manchester. Part 1: Terminology, definitions, clinical examination, natural history, patellofemoral osteoarthritis and patient-reported outcome measures. Br J Sports Med. 2016 Jul;50(14):839-43. doi: 10.1136/bjsports-2016-096384. Epub 2016 Jun 24. PMID: 27343241; PMCID: PMC4975817.

  • Updated 2023 Apr 22]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025 Jan-. Available from: [https://www.ncbi.nlm.nih.gov/books/NBK459195/

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