When a Home Physio Exercise Causes More Pain: What to Tell Your Therapist

You were given an exercise to do at home. Now it hurts more than you expected. Perhaps the pain starts halfway through the movement, appears later that evening, or is still there the next morning. The immediate question is practical: should you continue, change something, or ask for advice?

There is no single pain rule that fits every person and every physiotherapy plan. Some discomfort may have been discussed as part of your treatment; a new or unexplained increase deserves attention. If physiotherapy exercises increase pain, use the instructions your clinician gave you about when to stop or modify them. If those instructions do not cover what is happening, pause the exercise that caused concern and seek advice rather than pushing through to complete it.

Start with the instructions you were actually given

A home exercise is part of an individual treatment plan, not a test of how much pain you can tolerate. The NHS explains that a physiotherapist may give exercises to do at home between appointments. The version demonstrated to you, the amount prescribed, and any stopping or adjustment advice from your clinician matter more than a general rule you find elsewhere.

Check your written plan or appointment notes. Did your therapist describe a sensation you might expect? Did they say what to do if pain increased during the movement or afterwards? Were you given an easier version to use under particular circumstances? Follow those instructions if they clearly address your situation. If the advice is missing, unclear, or does not seem to fit the change you have noticed, contact the clinician or service that issued the plan.

Cambridge University Hospitals’ home exercise guidance tells patients to stop the exercises and seek advice from a doctor or physiotherapist if they experience increased pain or discomfort or sustain an injury. Its leaflet also describes some mild discomfort after exercise. Those statements are a reason to describe the change precisely and have your own clinician judge it in the context of your condition. They do not give you a diagnosis or an instruction to keep trying a movement that is unexpectedly making you worse.

Notice when the pain changes

Try to separate what happened during the exercise from what happened later. Did the pain begin as you moved, at the end of a set, after you stopped, or during another activity that day? Did it settle quickly, return with the next attempt, or remain different from your usual symptoms? Timing can help your therapist understand the pattern without asking you to reproduce a painful movement simply to demonstrate it.

Describe the change against your own starting point. “My knee was mildly sore before I began, but the pain became sharp during the second exercise and I stopped” gives more information than “The exercise hurt.” You can also say whether the pain is in the familiar area or somewhere new, and whether it feels different from the sensation your therapist told you to expect.

One NHS physiotherapy service, Kingston and Richmond, uses a pain guide in its after-appointment leaflet and notes that a flare-up can occur despite careful pacing. It also says its guide is only a guide. A scale may help you describe what happened, but a number alone cannot tell your therapist whether your particular exercise should continue. Include what the pain stopped you doing, how long the change lasted, and whether it is still getting worse.

Make a short record before the details fade

You do not need a complicated diary. A note on paper or your phone can capture the details your therapist is likely to ask about:

• The exercise: Use the name on your plan if you have it. If you do not, describe the movement and which side of your body you were using.
• What you did: Note the version, support or equipment used, and how much of the prescribed exercise you completed before the symptom changed.
• When it happened: Record the approximate time and whether the pain began during the movement, immediately afterwards, or later.
• What changed: Describe the location and character of the symptom in your own words. Say how it differs from your usual pain or from what your therapist said to expect.
• What happened next: Note whether you stopped, whether the symptom settled or persisted, and how it affected walking, sleep, work, or another relevant activity.

Include other changes that may matter, such as a fall, a different activity, or an adjustment you made to the prescribed movement. If you are unsure whether two events are connected, say so. You are reporting observations, not proving that the exercise caused every symptom.

Tell your therapist what decision you need

When you contact the service, lead with the exercise and the change: “I was doing the home exercise you gave me, and the pain increased during it. I stopped. It has not returned to its usual level. What should I do with that exercise until we can review it?” This tells the clinician both what happened and why you are getting in touch.

Be candid if you changed the movement, used different equipment, missed sessions, or did more than prescribed. These details are part of the clinical picture, not a confession. Your therapist may need to check whether the exercise was understood as intended, whether the plan needs review, or whether the new symptom calls for a different assessment. Ask them to state the next step clearly and, where possible, to update your written instructions.

Do not turn uncertainty into an exercise experiment

It can be tempting to repeat the movement to see whether the pain happens again, complete the remaining repetitions because they are on the sheet, or search for an easier version and substitute it yourself. If the worsening is unexplained, those attempts may make the account harder to interpret and may go beyond the plan you were given.

There is a difference between using an adjustment your clinician already prescribed and inventing one after symptoms change. If your plan says when to reduce an amount, change a position, or use an alternative, follow that advice as it applies to you. Otherwise, ask before deciding that fewer repetitions, a different weight, or a new technique solves the problem. The question for your therapist is not simply “How do I finish this exercise?” It is “Does this change fit what you expected, and what should I do now?”

Know when to use another care route

A routine physiotherapy message is suited to a question about a plan that can safely wait for the service to respond. A new or worsening problem that needs medical help now may require a different route, particularly when your physiotherapy service is closed. Ask your care team in advance which local service to use and what changes should prompt you to seek help sooner.

In England, NHS 111 can direct people who think they need medical help right now to an appropriate service, including when they cannot contact their GP. For a life-threatening emergency, NHS guidance says to call 999. If you live elsewhere, use your local urgent-care and emergency services. Do not wait for a routine exercise review when you believe you need urgent medical attention.

A message you can adapt

If you are unsure how to put the details together, use this as a structure. Replace the brackets with your observations and leave out anything you do not know:

“I am following the home exercise plan from my appointment on [date]. During [name or description of movement], after [what I had done], I noticed [symptom and location]. This was different from my usual symptoms because [change]. I stopped at [point]. The symptom [settled after a period of time / is still present / has changed again], and it has affected [relevant activity]. I also noticed [other relevant change, if any]. Should I leave this exercise out until you review it, and do I need an earlier assessment?”

Before ending the conversation, check which exercises to follow while you wait, who will review the new symptom, and when to seek further help. Write the advice beside your plan.