Types

Patellar Tendonitis (Jumper's Knee)

Choose a preferred language


What is jumper's knee?

Jumper's knee, also known as patellar tendonitis, is a condition characterized by inflammation of your patellar tendon (or patellar ligament). This connects your kneecap (patella) to your shinbone (tibia). Jumper’s knee weakens your tendon, and, if untreated, can lead to tears in your tendon.

Front view of knee joint showing patellar ligament.


What causes jumper’s knee?

Jumper’s knee is caused by overuse of your knee joint, such as frequent jumping on hard surfaces.

It’s usually a sports-related injury. It is linked to leg muscle contraction and the force of hitting the ground. This strains your tendon. With repeated stress, your tendon may become inflamed.


What are the symptoms of jumper's knee?

Following are the most common symptoms of jumper's knee:

  • Pain and soreness around your patellar tendon

  • Swelling

  • Pain with jumping, running, or walking

  • Pain when bending or straightening your leg

  • Tenderness behind the lower part of your kneecap

The symptoms of jumper's knee may look like other conditions or medical problems. Always see your healthcare provider for a diagnosis.


How is jumper's knee diagnosed?

In addition to a complete medical history and physical exam, your healthcare provider may use an X-ray to help diagnose jumper's knee.


How is jumper's knee treated?

The best treatment for jumper's knee is to stop any activity that’s causing the problem until the injury is healed. Other treatment may include:

  • Nonsteroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen or naproxen

  • Rest

  • Elevating your knee

  • Ice packs to your knee to help reduce swelling

  • Stretching and strengthening exercises

  • Physical therapy


Key points about jumper's knee

  • Jumper’s knee is inflammation of your patellar tendon, the tendon that connects your kneecap (patella) to your shinbone (tibia).

  • Jumper’s knee is often a sports-related injury caused by overuse of your knee joint.

  • You may need an X-ray to help diagnose jumper’s knee.

  • The best treatment for jumper's knee is to stop any activity that’s causing the problem until the injury is healed.


Next steps

Tips to help you get the most from a visit to your healthcare provider:

  • Know the reason for your visit and what you want to happen.

  • Write down questions you want answered before your visit.

  • Bring someone with you to help you ask questions and remember what your provider tells you.

  • At the visit, write down the name of a new diagnosis, and any new medicines, treatments, or tests. Also write down any new instructions your provider gives you.

  • Know why a new medicine or treatment is prescribed, and how it will help you. Also know what the side effects are and when they should be reported.

  • Ask if your condition can be treated in other ways.

  • Know why a test or procedure is advised and what the results could mean.

  • Know what to expect if you do not take the medicine or have the test or procedure.

  • If you have a follow-up appointment, write down the date, time, and purpose for that visit.

  • Know how you can contact your provider if you have questions, especially after office hours and on weekends and holidays.

Online Medical Reviewer: Rahul Banerjee MD

Online Medical Reviewer: Raymond Turley Jr PA-C

Online Medical Reviewer: Rita Sather RN

Date Last Reviewed: 09/01/2023

© 2000-2025 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.
doctor icon

Find the right provider to meet your needs

From primary care to specialty services and more.

Find a Doctor
appointment clock icon

Call for an Appointment

Offering personalized care at more than 20 clinics across three cities and two states.

Call Now
Related Articles
Read article
Orthopedics
Understanding a Clavicle Fracture

A fracture of the clavicle is a broken collarbone. Clavicle fractures occur most often along the middle of the bone. Depending on how badly the bone is broken, healing may take a few months or longer.

Read article
Orthopedics
Back Pain (Acute or Chronic)

Back pain is 1 of the most common problems. The good news is that most people feel better in 1 to 2 weeks, and most of the rest in 1 to 2 months. Most people can remain active.

Read article
Orthopedics
Sacroiliitis

Sacroiliitis is when one or both sacroiliac joints are hurt or inflamed. It can make small movements of the lower back and pelvis very painful. Learn how to care for yourself at home.

Read article
Orthopedics
Understanding Bennett Fracture

A Bennett fracture is a break of the lower part of the first metacarpal bone in your thumb. The most common cause for this injury is a direct blow to a thumb that is bent.