The short explanation
One swollen, painful calf after a caesarean can be a sign of a blood clot in a leg vein, known as deep vein thrombosis. Becoming breathless as well can mean a clot has moved to the lungs, which is an emergency. Please call 112 or go to the nearest emergency department now. The risk of clots is higher in the weeks after birth, especially after a caesarean, and doctors can treat clots effectively when they are found quickly.
What depends on your situation
The parts of this that change from woman to woman. Uncertainty is stated, not hidden.
- Other risk factors include being less mobile, a higher body weight, a previous clot, and a family history of clots.
- Do not massage the leg or wait to see if it settles.
- If you are breastfeeding, the doctors will choose treatment that is compatible.
What this answer cannot determine
The boundary of online education. These need a clinician who can see you.
- This answer cannot tell whether you have a clot. Only examination and tests such as an ultrasound of the leg and sometimes a chest scan can show this.
Questions for your clinician
Take these with you. You can add any of them to an appointment card.
- Do I have a clot in my leg or lungs?
- What tests are needed?
- Is the treatment safe while breastfeeding?
- How can I reduce the risk of clots in future?
When to seek help
Clinician-approved guidance for this topic. When in doubt, being seen is never the wrong choice.
Emergency — call 112 now
- Call 112 or go to the nearest emergency department if you have sudden breathlessness, chest pain, coughing up blood, or one leg that is suddenly swollen, red and painful.
Get help the same day
- Even without breathlessness, a swollen, painful calf after delivery needs to be checked today.
Raise it at a routine appointment
- Discuss clot risk for any future pregnancy or surgery.
Sources
The evidence this explanation is built on.
- Postpartum care MedlinePlus (NIH)
- Pelvic floor disorders MedlinePlus (NIH)
Who wrote and reviewed this
Every AskHer answer names its author. A clinically reviewed answer also names the clinician who signed it off — if no clinician is named below, it has not been clinically reviewed.
- Author
- AskHer Editorial (AI-assisted draft) AskHer's editorial team — not an individual clinician Works in English, தமிழ், हिन्दी
- Clinical reviewer
- Nobody yet No clinician has signed this answer off, and no person on the editorial team has read it yet. That is what the “Written with AI assistance” label means. It is queued for an editor to read, and then for a clinician who works in this area. The sources it was drafted against are listed above.
- Review status
- Written with AI assistance — not yet reviewed by a person
- Last reviewed
- Not yet reviewed by a person
- Version
- 1
Correction history
Substantive changes are listed, not quietly edited away.
No corrections have been made since this answer was first published.
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