Knee Pain: Causes, Symptoms & Treatments

Knee pain is a common complaint that affects people of all ages. Because the knee joint supports almost the entire weight of the body, everyday activities such as walking, standing, or climbing stairs can easily strain it. Whether your pain comes on suddenly after an injury, or gradually over time, understanding its causes, symptoms, and treatment options is key to getting back to full mobility and quality of life.

What is Knee Pain?

Knee pain describes discomfort in or around the knee joint. This pain can be sharp or dull, sudden or gradual, constant or intermittent. It may affect the front, back, side, or all around the knee, and may be accompanied by stiffness, swelling, or mechanical noises (such as clicking or crunching). Knee pain can impact everyday tasks like sitting, walking, stair-climbing, or rising from a chair.

Causes of Knee Pain

Knee pain has many possible causes. Some are acute injuries, others degenerative (wear and tear), and some results of overuse. Below are some of the most common causes:

1. Ligament Injuries
   Ligaments are strong bands of tissue that connect bones. The knee has several major ligaments (e.g. ACL, PCL, MCL, LCL) that help stabilise the joint. A sudden twist, a heavy impact, or an awkward fall can cause tears or sprains. Symptoms may include pain, swelling, instability, and difficulty bearing weight. Proback Advanced Back Care

2. Meniscus Tear
   The menisci are cartilage pads that cushion between the femur (thigh bone) and tibia (shin bone). Twisting motions, especially during sports, may tear the meniscus. This can result in pain, swelling, a catching or locking sensation, and sometimes a “crunching” sound when moving the knee. Proback Advanced Back Care

3. Tendinitis / Patellar Tendon Overuse
   Repeated stress on the tendons around the knee — particularly the patellar tendon (just below the kneecap) — can lead to inflammation (tendinitis). Activities like running, jumping, or frequent use of stairs can contribute. The knee may become swollen and bending or straightening becomes painful. Proback Advanced Back Care

4. Patellofemoral Pain Syndrome (“Runner’s Knee”)
   This is a common cause of knee pain among runners, cyclists, or anyone whose activity places pressure behind or around the kneecap. It often causes pain during stair descent, sitting for long periods (the “theatre sign”), or when squatting. Proback Advanced Back Care

5. Osteoarthritis
   Over time, the cartilage that cushions the bones in the knee can wear away. This wear and tear causes bones to rub together, resulting in stiffness, pain (especially after rest or first thing in the morning), and noises like clicking or cracking within the joint. Osteoarthritis is more common with ageing, overuse, obesity, or prior injury. Proback Advanced Back Care

6. Bursitis
   Bursae are small fluid-filled sacs that reduce friction between tissues (like tendons, ligaments, and bone). If a bursa becomes inflamed (bursitis), the knee may swell, feel warm, and be tender to touch. Movements that normally cause friction may trigger pain. Proback Advanced Back Care

7. Fractures and Bone Injuries
   A direct blow or high-impact injury (such as from falls or traffic accidents) may lead to fractures of parts of the knee (patella, tibia, femur). This causes severe pain, swelling, inability to move or bear weight, and sometimes visible deformity. Proback Advanced Back Care

Common Symptoms

Although symptoms vary depending on the cause, there are several signs people typically experience when dealing with knee problems. These include:

• Swelling around the knee joint. Proback Advanced Back Care

• Stiffness or inability to fully bend or straighten the knee. Proback Advanced Back Care

• Pain, especially when moving, walking, going up or down stairs. Proback Advanced Back Care

• Instability—feeling the knee might “give way.” Proback Advanced Back Care

• Sounds such as clicking, cracking, or crunching during movement (“crepitus”). Proback Advanced Back Care

• Heat, redness, or tenderness to touch, especially if inflammation or infection is involved. Proback Advanced Back Care

Diagnosis: What Happens First

Before treatment begins, it is essential to identify the underlying cause of the knee pain. A thorough examination typically includes:

• Detailed history: How and when did the pain first start? What movements worsen it? Any injury or unusual strain?

• Physical examination: Checking range of motion, swelling, alignment, strength of surrounding muscles, tenderness areas.

• Imaging if needed: X-rays, MRI or ultrasound to view bones, cartilage, ligaments or detect tears, fractures or degeneration.

• Assessment of contributing factors: Body weight, gait, footwear, activity levels or repetitive strain.

Treatment Options

Treatment depends on the specific cause, severity, age, lifestyle, and whether the condition is acute or chronic. Below are widely-used treatment approaches, from conservative (non-invasive) to more advanced interventions:

Managing Everyday Knee Pain

For many people, knee pain arises from repetitive strain, wear and tear, or mild injury. These measures can help manage pain and prevent further damage:

• Maintain a healthy weight. Less load on knees means less wear and tear.

• Choose low-impact activities (swimming, cycling) rather than high impact ones.

• Warm up before physical activity; stretch afterwards.

• Use proper footwear with good support.

• Avoid sitting or standing for prolonged periods; take breaks, shift positions.

• Strengthen muscles around the knee (quadriceps, hamstrings, calves, glutes) to help with joint support.

When to Seek Professional Care

You should consider consulting a healthcare professional when:

• Pain is severe, does not improve after a few days of rest, or worsens.

• You cannot put weight on the knee, or the knee gives way.

• There is significant swelling, redness or warmth (possible infection or inflammatory condition).

• You hear a popping or snapping sound at time of injury.

• There is ongoing or repeated pain during normal daily activities like walking or climbing stairs.

ProBack’s Approach to Treating Knee Pain

At ProBack, we believe in diagnosing the root cause of knee pain first. Once that’s clear, our treatments aim to relieve pain, correct mechanical issues, and prevent recurrence. Some of the key methods we use:

• K-Laser Therapy: Applying laser energy to reduce inflammation, stimulate healing, and support tissue repair. Proback Advanced Back Care

• Prolotherapy & Prolozone Treatment: Stimulating regrowth and healing in ligaments and cartilage by improving blood flow and repairing tissue. These treatments are especially helpful in cases where healing is delayed due to poor circulation or chronic joint stress. Proback Advanced Back Care

• Shockwave Therapy: Used to break down scar tissue, enhance blood flow, and help restore movement in the joint. Proback Advanced Back Care

• Tailored Rehabilitation Exercises: Based on what we find in the examination, we prescribe exercises and stretches to rebuild strength, improve mobility, and correct any alignment or movement problems.

Recovery & Prevention Tips

Recovery from knee pain involves patient consistency and care. Here are tips to help:

• Follow treatment plans fully, including any recommended rest periods.

• Do prescribed exercises regularly—not only when you feel pain, but also during recovery.

• Avoid pushing through pain. Sharp pain is a warning.

• Make lifestyle adjustments: weight control, avoiding repetitive strain, maintaining flexibility.

• Monitor symptoms. If you notice new swelling, instability, or limiting pain, revisit your treatment plan.

Conclusion

Knee pain can be temporary and mild, or chronic and debilitating. But with the right diagnosis and treatment approach, many people can regain function, reduce pain, and resume their everyday activities. Whether your knee pain is from an injury, overuse, or arthritis, it’s worth getting it assessed early. ProBack combines therapeutic approaches like laser, prolotherapy, and customised rehabilitation to help you heal safely and sustainably.

If you’re experiencing knee pain that’s affecting your life, don’t hesitate to book a consultation. Early care makes a big difference—and relief may be closer than you think.