Should exercise hurt to be effective?
No. You don’t need to feel pain to get results from exercise.
“No pain, no gain.” It’s the phrase that shows up in locker rooms, fitness classes, and maybe even your own inner dialogue when a workout gets tough. Like a lot of athletes, I grew up in that world, and there’s a spirit of toughness in it that I actually respect. Coaches said things like “rub some dirt on it” and “pain is weakness leaving the body,” and honestly, some of that mindset has its place.
But here’s what I’ve learned as a physical therapist and strength and conditioning coach: pain and progress aren’t the same thing. And if you’ve ever pushed through discomfort only to end up sidelined, you already know that firsthand.
You don’t need pain to make progress. Effort and mild soreness can be normal, but sharp or persistent pain is often a sign to adjust, not push harder.
So how do you know the difference between working hard and pushing too far?
Where “no pain, no gain” gets it wrong
Like most clichés, this one isn’t entirely off base. It’s just incomplete.
Progress does require effort. It asks your body to adapt, to get stronger, to move in ways that might feel unfamiliar at first. That part is true. But somewhere along the way, “effort” got confused with “pain,” and that’s where problems start.
One of my favorite examples of pushing through: in 1997, Michael Jordan had the flu but scored 38 points to put the Bulls up 3-2 over the Jazz in a crucial Game 5. Legends are made of moments like that. And sure, if I’m Michael Jordan in that scenario, I hope I have the tenacity to endure lots of pain to gain an NBA title.
But most of us aren’t Michael Jordan. And the “no pain, no gain” mindset gets applied to situations where it genuinely doesn’t belong and ends up doing real damage.
Pain vs. discomfort: what’s the difference?
Not all discomfort is a bad thing, but not all of it should be ignored either.
What is normal muscle soreness?
- Mild muscle soreness 24-48 hours after activity (known as DOMS, delayed onset muscle soreness) is a sign your body is adapting
- A feeling of fatigue or “burn” during exercise
- Temporary stiffness that improves as you move
What type of pain should you not ignore?
- Sharp or sudden pain
- Pain that gets worse the longer you keep going
- Pain in your joints, or pain that changes the way you move
- Discomfort that lingers for more than a few days
- That second list isn’t your body “working harder.” That’s your body waving a flag.
That second list isn’t your body “working harder.” That’s your body waving a flag.
Do you have to be sore to make progress?
It’s easy to measure a workout by how you feel the next day. Sore? Must have been a good one. Not sore? Maybe it didn’t do much. But progress doesn’t actually work that way.
DOMS can happen when your body is introduced to something new or more challenging, but it isn’t a reliable indicator of effectiveness. Strength, endurance, and mobility are built through consistency over time, not by chasing that post-workout ache. In fact, if you’re constantly sore, it might be a sign your body isn’t getting the recovery it needs to fully adapt.
When pushing through helps and when it doesn’t
A classic example I see all the time: shoulder injuries during weightlifting.
Bench press, overhead press, these lifts can be hard on the shoulder if your rotator cuff and supporting muscles aren’t strong enough to handle the load. Strains and tendinitis are common, and the typical thought process goes something like this:
“I can just push through this because I don’t want to lose the gains I’ve made, and everything will be alright.”
I’ve had that thought myself. It’s a hard lesson to learn, but the smart move is to manage the pain, let the tissues heal, and gradually return to the lift.
Pushing through a warning sign doesn’t speed up progress. It usually just extends the time you’re out.
Here’s why: pain is an alarm. When your shoulder starts hurting, your nervous system has picked up on chemical changes from inflammation and flagged that something needs to heal. If you hit snooze and keep going, two things tend to happen.
First, you risk making the injury worse, turning something that needed a few days of rest into something that needs weeks or months of care.
Second, you increase your risk of developing chronic pain. The nervous system will adapt to being ignored by becoming more sensitive, not less. What used to take a heavy lift to trigger pain will start going off at much lower loads, like a home security alarm that was set to detect break-ins but starts going off when a leaf blows past.
That said, there’s another extreme that isn’t helpful either: treating all pain as a stop sign. Chronic pain often requires some graded exposure, a carefully structured return to activity, rather than full avoidance. Knowing which situation you’re in is where it gets nuanced, and where a skilled provider can make a real difference.
A better way to think about progress
One of the most important skills you can build in any activity isn’t how hard you can push. It’s how well you can listen.
Instead of asking “Did that hurt enough to count?” try asking:
- Am I building consistency?
- Do I feel challenged, but still in control?
- Am I able to come back and do this again?
Progress is less about intensity in a single moment and more about what you can sustain over time. The goal isn’t to survive one brutal workout. It’s to keep moving, day after day, in a way that builds strength, confidence, and resilience.
When to talk to a physical therapist about your pain
Sometimes, even when you’re paying attention, it’s hard to know what your body is telling you.
As a physical therapist, I work with patients, parents, and coaches on exactly this, figuring out what’s a normal training response and what needs actual attention. If pain keeps showing up no matter how you adjust, or if you’re genuinely unsure whether to push through or back off, that’s worth a conversation.
Consider checking in if you’re experiencing:
- Pain that lasts more than a few days
- Pain in your joints rather than your muscles
- Discomfort that changes how you move or exercise
- Repeated setbacks when trying to stay active
Getting ahead of it early keeps small issues from turning into bigger ones and keeps you doing the things you actually want to be doing.
Keep moving forward with the help of PT
We owe it to ourselves not to live at either extreme, not in the “push through everything” camp, and not in the “avoid all discomfort” camp. The goal is to become a good adapter. To weigh the situation, listen to your body, and make a smart call.
Sometimes that means channeling your inner Michael Jordan. More often, it means being humble enough to rest, recover, and come back stronger.
Progress isn’t about how much discomfort you can tolerate. It’s about building something that lasts. When you learn to work with your body instead of against it, you don’t just get stronger for a moment. You stay in the game longer.
And that’s what really keeps you moving.
Not sure if your pain is normal?
If pain keeps showing up no matter how you adjust, you don’t have to figure it out alone. We’re here to help. Our physical therapists help you understand the difference between productive effort and pain worth addressing — so you can keep doing what you love.
