Why Does My Knee Hurt? Common Causes of Knee Joint Pain

Jan20th 2026

Dealing with knee pain? You’re not alone! Knee joint pain affects people of all ages and can arise for various reasons, from chronic conditions to muscular imbalances. Fortunately, you don’t have to manage knee pain on your own.

The North Austin Physical Therapy team regularly helps people address knee discomfort, working with them to develop the best approach to meet their needs. Today, we want to share the stories of three such patients (their names have been changed) so you can see this process in action.

Living with Knee Osteoarthritis

Meet Barbara, A Retired Nurse and Avid Gardener

Barbara had always loved being active, especially tending to her backyard vegetable garden. But over the years, she began experiencing stiffness and swelling in both knees, particularly in the mornings and after rest periods. Eventually, even walking around the block became a painful chore. Frustrated and limited, she turned to physical therapy for relief.

What Caused Barbara’s Knee Joint Pain?

Barbara was diagnosed with knee osteoarthritis, a degenerative condition where the cartilage that cushions the knee gradually wears down. This leads to joint inflammation, bone friction, and reduced mobility. Her pain was worsened by years of repetitive kneeling and squatting, combined with general wear and tear associated with aging.

How Physical Therapy Helped

Barbara worked with out PTs to develop a targeted, joint-friendly treatment plan that emphasized:

  • Manual therapy to improve joint range of motion
  • Strengthening exercises for the quadriceps and hip stabilizers to reduce joint stress
  • Low-impact aerobic activities like cycling and aquatic therapy
  • Education on joint protection techniques during gardening and housework

After three months of consistent therapy, Barbara could garden again using modified movements and assistive tools to protect her knees, without relying on pain medications.

How Muscle Imbalances Lead to Pain

Meet Marissa, A Fitness Enthusiast

Marissa loved high-intensity workouts but started to feel pain on the outside of her left knee during runs. She assumed it was a temporary strain until it gradually worsened. She finally sought help when even daily walks became uncomfortable.

What Caused Marissa’s Knee Joint Pain?

Marissa had a common condition called iliotibial band syndrome (ITBS), often caused by overuse and muscle imbalances. Her glutes were underactive, causing her hip and thigh muscles to overcompensate and place excessive stress on the knee.

How Physical Therapy Helped

Her therapist focused on:

  • Glute activation exercises to restore balance
  • Soft tissue mobilization along the IT band
  • Gait retraining to optimize stride patterns
  • Education on cross-training to prevent recurrence

Within six weeks, Marissa was back to pain-free running with a better understanding of body mechanics.

When Post-Surgical Recovery Takes a Turn

Meet Harold, A Retired Teacher

After a successful knee replacement surgery, Harold expected a smooth recovery. But after a few months, he began experiencing stiffness, swelling, and discomfort during his daily walks.

What Caused Harold’s Knee Joint Pain?

In Harold’s case, post-surgical inflammation and scar tissue had limited his joint mobility. Despite attending rehab, the lack of follow-up strengthening exercises had caused a regression in his progress.

How Physical Therapy Helped

His therapist implemented:

  • Scar tissue mobilization to improve his range of motion
  • Progressive strength training to rebuild support muscles
  • Functional movement drills for stair climbing
  • Home exercise program for long-term maintenance

With ongoing therapy and commitment, Harold regained mobility and resumed his normal activities without discomfort.

Other Common Causes of Knee Pain Treatable with PT

Physical therapy can address a wide range of knee joint pain, including:

  • Arthritis-related inflammation
  • Patellar tracking problems
  • Tendonitis
  • Ligament injuries (ACL, MCL strains)
  • Meniscus tears
  • Bursitis
  • Gait or posture abnormalities

No matter the cause, our individualized treatment plans help reduce pain, restore function, and prevent future injury.

Take Control of Your Knee Health Today

If you’re struggling with knee joint pain, don’t wait for it to worsen. The earlier you seek help, the faster you’ll find relief. At North Austin Physical Therapy, our physical therapists offer personalized, effective approaches to get you moving again.

Schedule an appointment at our Leander, TX, or Cedar Park, TX clinic to start your personalized recovery plan.

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