How long does the cervix take to close after birth?

The cervix generally doesn't close fully for around six weeks, so up until that point, there's the risk of introducing bacteria into the uterus and ending up with an infection
By the six-week mark, your vagina, perineum or C-section incision should be healed, and your uterus should be back to its normal size. Throughout those first weeks, you'll experience a lot of changes – from new levels of tiredness to hormone fluctuations.
The reality is that at six weeks (or even way later) post-birth, it may not go well, regardless of whether you had a vaginal delivery or a C-section, says Jawed-Wessel.

She explains that the cervix can remain sensitive even after it has returned to its typical dilation. Vaginal tears and abrasions may be healed and stitches may have dissolved, but the tear sites are usually still tender or sore, she adds, and fresh scar tissue can have difficulty stretching.

It also takes time for the body to adjust to hormonal changes after pregnancy, especially while breastfeeding, Dr. Ghodsi says. These hormone changes mainly affect lubrication and should be temporary, she explains, but dryness can last as long as you breastfeed.