How long does it take to heal after open-heart surgery?

The breastbone: six to eight weeks

This is the number that governs everything else. Your sternum was divided and is now held together with wire while new bone bridges the gap. Until that bridge forms, the wire is doing the work, and wire tolerates repeated tension poorly.

That is the entire reason for lifting limits, for not pushing up out of chairs with your arms, and for wearing chest support. It is also why the six-week surgical review is the appointment where restrictions change.

The skin: two to three weeks

The incision itself usually closes within a couple of weeks and is the part you can see — which is why people assume they have healed sooner than they have. A closed, comfortable-looking scar sits directly over a bone that is still weeks from being solid.

Lungs and stamina: three to six months

Weeks of shallow breathing and reduced activity cost real lung capacity and muscle conditioning, and rebuilding them is the slowest part of recovery. Most patients describe three to six months before energy feels genuinely their own again, with cardiac rehabilitation doing most of the heavy lifting.

Progress is not linear. A strong day followed by a flat one is the normal pattern rather than a setback.

The scar, longer term

Numbness, tingling, itching or occasional sharp sensations along the incision are common as nerves recover, and can persist for months. Mention them — they are usually nothing, but pain that is worsening rather than settling deserves review.

What is not normal at any stage: a wound that becomes more red, swollen or painful, discharge, fever, or a clicking or grinding sensation in the breastbone. Those warrant a call to your surgical team. In an emergency call 000.