Most of us start running for the good stuff. A clearer head. A bit of routine. The simple satisfaction of getting out the door when you didn't really fancy it.

Knee pain has a way of hijacking that. It turns an easy run into a scan of every step, and it turns "I'll just go steady" into "how far is too far?". The annoying part is it rarely arrives with drama. It's usually a slow creep. A dull ache that hangs around. A twinge on the stairs. Something that feels fine once you warm up, until it doesn't.

Claire Taylor, sports rehabilitator at Taylormade Rehab, makes a point I really like because it doesn't get melodramatic about it. When running triggers injury, there's usually an explanation, and that means there's usually a solution. Not always an overnight one, but a real one. The first step is getting a feel for what you're dealing with, because "knee pain" isn't one thing.

Here are four of the most common knee injuries runners run into, what they tend to feel like, and the general direction of travel when it comes to calming them down and preventing a repeat.

Patellofemoral pain syndrome (runner's knee)

This is the classic "runner's knee" people talk about, and it often starts so subtly you almost convince yourself it's nothing. The pain is usually around the front of the knee, sometimes behind the kneecap, and it tends to build gradually over time rather than appearing out of nowhere. It can feel like a dull ache, and it's often aggravated by running, walking, and especially going up and down stairs. Swelling can also show up when it flares.

What's going on, broadly, is a combination of overuse and some form of misalignment at the knee. The tricky bit is that "misalignment" can come from different places, which is why the long-term fix isn't always just rest. It's figuring out what's nudging the knee into a pattern it doesn't love.

When it flares acutely, Claire recommends the R.I.C.E. approach for the first 24 to 48 hours: rest, ice, compression and elevation. After that, the focus shifts. You want to stop poking it in the bruise. That usually means temporarily restricting whatever triggers the pain, then replacing it with lower-impact movement while you work on the basics. Keeping the joint moving through its comfortable range matters. So does stretching through the lower limb, particularly quads, hamstrings and glutes. Strength work is part of the picture too, and for some runners taping can help offload the kneecap while things settle.

Prevention tends to be boring in the way most useful things are. Daily stretching as part of your recovery routine, strength training that addresses imbalances, and professional advice if there's a question mark around insoles or footwear support. If it's not settling, don't keep guessing. Get it looked at.

Iliotibial band syndrome (ITBS)

IT band pain usually has a pretty recognisable vibe. You feel it on the outside of the knee, sometimes with swelling, and it often appears during the run after a short while. Then it eases once you stop. That pattern can make it tempting to ignore, because you finish the run and it feels like you've "got away with it". Then you try again, and it comes back right on schedule.

Claire notes it's often seen in longer-distance runners and can be worse downhill or going downstairs. It's generally classed as an overuse injury where the tissue of the iliotibial band, that fascia running down the outside of the leg, is experiencing friction over the bony surface underneath.

In an acute flare-up, Claire again points to R.I.C.E. for the first 24 to 48 hours, then a period of restricting pain-provoking running. From there, the work is about giving the system a chance to calm down while you address what's contributing. Stretching can help, particularly through the quads, hip flexors, glutes and the ITB area. Keeping your joint range of movement is important. Strength work matters, because the goal is better alignment and control, not just looser muscles. Claire also mentions foam rolling or a massage ball for myofascial release, and taping techniques that can offload the ITB while you recover. Anti-inflammatories may help with pain management if they're appropriate for you.

Prevention, again, is a mix of consistent stretching, strengthening to support alignment, and regular myofascial release. If it doesn't settle, that's the cue to get medical advice rather than turning every run into a negotiation.

Patellar tendonitis

Patellar tendonitis is pain at the front of the knee, most commonly felt just below the kneecap where the tendon joins the tibia. It's an overuse injury caused by repeated impact, and early on it can play a little trick on you. It might hurt at the start of a run, then ease as you warm up, then feel stiff again afterwards. Left alone, it can become more persistent, showing up throughout the run and even during normal life, like stairs or standing up from a chair.

Claire's treatment approach starts with calming the flare-up. In the first 24 to 48 hours, R.I.C.E. is recommended. Then you restrict the activities that bring pain on, keep the joint moving through its available range, and work on the tissues that are usually involved. Stretching the quadriceps is called out specifically. Strengthening is important too, often beginning with static quad work and progressing to eccentric loading once the initial inflammation has settled. Claire also mentions using a foam roller or massage ball on the quadriceps for myofascial release, and taping techniques to offload the tendon. Anti-inflammatories may help manage pain where appropriate.

Prevention is mostly about training load and robustness. Keeping your training progressive, letting your body adapt rather than jumping too quickly, and building strength so the knee isn't dealing with impact on a weak foundation.

Ligament injury

This one tends to feel different because it's usually tied to an actual moment. A sudden twist, an awkward landing, over-straightening the knee, or a direct impact. The knee has four main ligaments, and too much stress can overstretch or tear them. When that happens, the knee often responds loudly: sudden sharp pain, swelling, pain when weight-bearing, and a sense of instability.

Claire's advice in an acute flare-up stays consistent with the others: R.I.C.E. in the first 24 to 48 hours, and restrict pain-provoking activity. If it's significantly painful, crutches can be helpful. Keeping joint range of movement as able, and doing appropriate strengthening and balance work, are part of recovery. Taping techniques can offer support, and anti-inflammatories may help manage pain if they're suitable for you. If it doesn't settle, seek medical advice.

Prevention here is less about stretching and more about awareness and control. Uneven terrain becomes more risky under fatigue. Balance and proprioception training helps your body know where it is in space. Strength work gives the joint more protection when things get messy.

The part runners don't love hearing

If your knee becomes injured with no specific trauma and you keep running on it without changing anything, you're likely to make it worse. And if it stays unresolved, you increase the risk of longer-term wear and tear. It's not about being dramatic, it's just how bodies behave when you keep loading a problem you haven't understood yet.

The good news is most "classic" running knee issues respond well when you catch them early and treat them like information, not a personal failure. If you're not sure what you're dealing with, getting advice from a registered healthcare practitioner can save you weeks of second-guessing.

Running is supposed to add to your life, not shrink it. The aim with injury isn't to win some tough-guy contest. It's to get back to moving well, and keep it that way.