In short. Chest pain, breathlessness, a swollen calf and a wound that gives way: what each finding means while you are moving, and which of them mean stop now.

Key points

  • A graded return assumes that some sessions will end early and that some stages will be held.
  • Stopping when a finding appears is part of the plan rather than a failure of it, and the review that follows decides whether the stage resumes.

Most of what happens during a return to training is ordinary, and a small number of findings are not. They are worth knowing in advance, because they arrive while you are moving and the decision has to be made in the moment.

Chest pain, breathlessness and a swollen calf

These three belong together, because they are how a clot in the deep veins of the leg announces itself, and how it announces that it has travelled to the lung. A clot can form during a period of stillness as easily as after activity, which is why the question is asked at every review whether or not you have been training. Breathlessness that is new, chest pain that is worse on breathing in, a calf that is swollen, tender and warmer than the other one, and a racing heartbeat are all reasons to stop and seek emergency care now.

Stopping is not the same as giving up on the plan

A graded return assumes that some sessions will end early and that some stages will be held. Stopping when a finding appears is part of the plan rather than a failure of it, and the review that follows decides whether the stage resumes.

A wound that gives way

When a closure is under strain, it gives way at its weakest point. Sometimes it is felt before it is seen: a sensation that something inside has released. Sometimes it is seen first, as a gap, a fresh ooze, or a dressing that has become wet. Either way, stop the activity, cover the area as you were shown, and be assessed the same day. A wound that has opened is not closed by resting it later.

Dizziness, fainting and a racing heartbeat

Feeling faint during exercise, a heartbeat that stays fast after you have stopped, and chest tightness that comes on with effort and eases with rest are not fitness findings in someone recovering from an operation. They are assessed urgently.

Severe pain, a new swelling and a change in shape

Pain that is severe rather than sore, a swelling or bulge that has appeared at the operated site, and a change in the shape the operation created suggest a collection, a bleed, or a result that has shifted. They are reasons to stop and be assessed the same day, and the last of them is the one that does not improve with rest. New numbness or weakness in a limb after training is assessed the same day as well.

Seek emergency care now if

  • Chest pain, breathlessness, or a swollen painful calf, during or after activity.
  • Dizziness, fainting, or a racing heartbeat that does not settle when you stop.
  • A wound that opens or bleeds heavily, or new numbness or weakness in a limb.

Say what you were doing, when the finding started, and what operation you had and when. Those three facts are what route the call, and nobody else can supply them.

Related reading

Frequently asked questions

What should make me stop training immediately?

Chest pain, breathlessness, a swollen painful calf, dizziness or fainting, a racing heartbeat that does not settle when you stop, severe pain at the operated site, a new swelling or bulge, a wound that opens, or new numbness or weakness in a limb. Stop, do not restart the session, and arrange care according to how serious the finding is.

What does a clot in the leg feel like?

Often a calf that is swollen, tender and warmer than the other one, sometimes with a dull ache that is worse when you stand or walk. It can also be silent, which is why a clot is asked about at every review after an operation. Breathlessness or chest pain that is worse on breathing in may mean it has travelled to the lung, and that is emergency care now.

What should I do if my wound opens during exercise?

Stop, cover the area as you were shown, and be assessed the same day. Do not press the edges together, do not apply anything to it, and do not shower or soak it. A wound that has opened needs to be looked at and sometimes closed again, and it needs longer before it takes load.

Risks & Limitations

  • Returning to activity ahead of the plan can cause bleeding, a collection, a wound that opens or a result that shifts.
  • Any further operation has its own recovery, its own limits and its own risks, and it restarts the graded return.
  • A result that has been displaced cannot always be corrected, and correction does not restore the area to a previous state.
  • Aching and tightness in the operated area can persist for weeks without meaning harm.
  • Some problems are better left alone than treated with another operation, and that is a legitimate answer.

When to Seek Care

  • Chest pain, breathlessness, or a swollen painful calf — seek emergency care now.
  • Dizziness, fainting or a racing heartbeat during activity — seek emergency care now.
  • A wound that bleeds, weeps or opens, or a new swelling or bulge at the operated site.
  • Fever with redness, heat or discharge at the wound.
  • New numbness or weakness in a limb after training.

References & Further Reading

  • American Society of Plastic Surgeons (ASPS) — procedure and safety guidance
  • National Institute for Health and Care Excellence (NICE, UK) — relevant guidance
  • Cochrane Library — systematic reviews
  • Chinese Medical Association Plastic Surgery Branch — clinical guidance
  • World Health Organization — patient safety and surgical care guidance

Medically reviewed by Tongchun Mao, MD (毛彤春), Deputy Director & Head of Aesthetic Surgery. Last reviewed: 19 September 2026.

This page is patient education, not medical advice, and it does not cite individual studies. Discuss your own case with a qualified clinician. To arrange an assessment at Chongqing West District Hospital, see Contact & Consultation.