You're halfway down a flight of stairs when you feel it — a sharp twinge just below the kneecap, or maybe a deep, grinding ache that wasn't there last month. You tell yourself it's nothing, favour the other leg for a step or two, and carry on. Then it happens again on the walk to the car. And again after your next run.

Knee pain has a way of creeping in gradually and then suddenly demanding attention — right as you're bending to tie a shoe, standing up from a low chair, or pushing through the last kilometre of a run. As one of the most heavily loaded joints in the body, absorbing multiples of your body weight with every step, run, and jump, the knee is also one of the most common sources of ongoing pain. The reassuring part is that the vast majority of knee pain has a clear, identifiable driver — and it's rarely as serious as people initially fear.

The Usual Suspects: What's Actually Causing Your Knee Pain

Patellofemoral pain (runner's knee). A dull ache around or behind the kneecap, often worsened by stairs, squatting, or sitting for long periods. It's usually driven by how the kneecap tracks within its groove, frequently linked to weakness in the hip and outer thigh muscles rather than a problem in the knee itself.

Meniscus irritation. The meniscus is a cushioning piece of cartilage between the thigh and shin bones. It can become irritated or torn through twisting movements, or gradually wear down over years of repetitive load — sometimes causing catching, locking, or swelling.

Ligament strain. The ligaments that stabilise the knee — including the ACL and MCL — can be sprained through sudden changes of direction, awkward landings, or direct impact, ranging from mild strain to more significant tears.

IT band syndrome. A tight iliotibial band running down the outside of the thigh can rub against the outer knee with repetitive bending, common in runners and cyclists, typically causing pain on the outside of the joint.

Patellar tendinopathy (jumper's knee). Irritation of the tendon below the kneecap, usually from repetitive jumping or rapid increases in training load, causing pain that's often worse with activity and eases with rest.

Muscle imbalances further up the chain. Weakness in the glutes and hips changes how load travels down through the leg, often placing excess strain on the knee even when the knee itself hasn't been directly injured.

Osteoarthritis. Gradual wear of the joint's cartilage over time, leading to stiffness, aching, and reduced range of motion — most common with age but influenced heavily by activity levels, strength, and previous injuries.

When Knee Pain Is a Sign of Something More Serious

Most knee pain responds well to conservative, active management. But certain presentations need prompt medical attention rather than a wait-and-see approach. Seek urgent care if knee pain comes with:

• Inability to bear any weight on the leg, or an obviously deformed joint following an injury

• A popping sensation at the time of injury followed by rapid swelling

• The knee giving way, locking, or being unable to fully straighten or bend

• Fever, redness, or warmth around the joint, which can indicate infection

• Significant calf swelling, redness, or warmth alongside knee pain, which can occasionally indicate a blood clot and warrants prompt medical review

Outside of these red flags, ongoing aches, stiffness, and activity-related pain are highly responsive to the right assessment and care.

How Chiropractic Care Approaches Knee Pain

An initial assessment looks beyond the knee itself. We want to understand how and when the pain started, what activities aggravate or ease it, your training or activity load, and your footwear. From there, we assess the mobility and alignment of the hip, knee, ankle, and foot together, since the knee sits in the middle of a kinetic chain — meaning a restriction or weakness elsewhere often shows up as pain here. Orthopedic testing helps clarify which structures are involved and rules out anything requiring further imaging or a different type of care.

Care is then built around what's actually driving your presentation, which may include:

• Joint mobilisation or adjustment to the knee, hip, ankle, or foot to restore healthy movement through the whole chain

• Soft tissue therapy for tight structures like the IT band, quadriceps, or calf that are altering how load moves through the knee

• Targeted strengthening, particularly of the hips and glutes, to correct the muscle imbalances behind many overuse-related knee issues

• Gait and movement analysis, along with guidance on training load or footwear, to address the pattern that led to pain in the first place

The aim is to resolve why the knee reached its limit, so a return to running, sport, or simply everyday movement doesn't bring the same pain straight back.

Common Knee Pain Myths, Busted

"Knee pain means I'll eventually need surgery." The large majority of knee pain, including many meniscus and ligament issues, responds well to conservative rehabilitation. Surgery is generally reserved for specific structural cases that don't improve with appropriate care.

"Running ruins your knees." Research consistently shows that moderate, well-managed running is not associated with higher rates of knee osteoarthritis, and appropriate loading actually helps maintain healthy cartilage and joint function over time.

"I should rest completely until it feels normal again." Extended inactivity often leads to further weakness, which tends to make knee pain worse in the long run. Gradual, guided movement is usually a bigger part of recovery than complete rest.