Most obstetric guidance recommends waiting at least 18 to 24 months after a C-section before conceiving again, mainly to give the uterine scar time to heal fully. Getting pregnant sooner doesn't automatically cause problems, but it does raise the risk of specific complications tied to a less-healed scar, which is why doctors generally advise spacing it out where possible.
Why does the gap matter specifically after a C-section?
A C-section leaves a surgical scar on the uterus itself, not just the skin. That scar needs time to regain its strength before it's put under the pressure of a growing pregnancy and labour again. A shorter interval between delivery and the next conception has been associated with a higher risk of uterine scar complications, including (in rare cases) uterine rupture during a subsequent pregnancy or labour — this risk is low overall, but it's meaningfully higher with a short interval than with an adequately spaced one.
What counts as "too soon"?
Conceiving within about 6 months of a C-section is generally considered too soon from a scar-healing standpoint, and most guidance treats anything under 12-18 months as a shorter-than-ideal interval, even if it isn't an absolute contraindication. The 18-24 month window is the commonly cited target for the scar to heal to a point where the added risk is substantially reduced.
The clock that matters most here isn't your age or how ready you feel — it's how long your uterine scar has had to heal.
What if I'm already pregnant sooner than that?
A shorter interval doesn't mean a problem is guaranteed — it means your doctor will likely monitor your pregnancy and scar (sometimes with specific scar-thickness scans) more closely than usual, and will factor the shorter gap into decisions about your delivery, including whether a vaginal birth after C-section (VBAC) is appropriate or whether a repeat C-section is advised. Don't make delivery decisions on your own based on something you've read — this needs your own obstetrician's assessment of your specific scar and pregnancy.
Does this apply the same way to every C-section?
Not entirely. The type of uterine incision, whether there were any complications during the surgery or healing, and how many prior C-sections you've had can all affect how your doctor weighs the interval. A single, uncomplicated, low-transverse C-section healing normally is a different picture from one with a more complicated recovery.
Frequently asked
Does this recommendation apply to contraception timing too?
Yes — the same reasoning is why doctors usually advise using reliable contraception for at least a year to two years after a C-section if you're not trying to conceive again right away, giving the scar time to heal regardless of whether a pregnancy is planned.
Can I have a normal (vaginal) delivery after waiting the recommended time?
Waiting an adequate interval is one of several factors that can support a VBAC (vaginal birth after C-section) being considered, but it isn't the only one — your scar type, the reason for your first C-section, and how this pregnancy is progressing all factor into whether VBAC is appropriate for you.
Is the risk from a short interval about the pregnancy itself, or specifically about labour?
Both can be affected, but the most specific concern is during labour and delivery, when the scarred area of the uterus is under the most mechanical stress. This is part of why the delivery plan (repeat C-section vs. attempted VBAC) gets revisited carefully when the interval has been short.
What if my C-section was for an emergency reason, not planned?
The recommended healing interval is generally the same regardless of whether the C-section was planned or an emergency — what matters for healing time is the surgery and scar itself, not why it was performed.