If a woman has had previous abdominal surgery through a midline scar, surgeons often open through the same scar again during later births.
Many women believe the scar on their belly tells the full story of a caesarean birth. It does not. The visible line is only part of the picture. Beneath it lies another, hidden incision; the one made on the uterus.
Dr Zoya Lalani, a consultant gynaecologist at Aga Khan University Hospital, says the skin and the uterus are cut differently for a reason. "The incision you see is the Pfannenstiel cut, a gentle curve just above the pubic bone. It carries the lowest risk of rupture if a woman goes into labour in future," she says.
"To reach the uterus, we usually use Kerr's incision, which is also transverse. But sometimes we adjust depending on the situation, such as in emergencies or when the baby is large or the placenta lies low."
She explains that the two cuts are rarely identical. If a mother has fibroids, for example, a T-shaped or J-shaped incision may be used to reach the baby safely.
"In rare cases like placenta previa, we perform a classical incision, which is a straight downward cut on the uterus to avoid the blood vessels," she adds.
If a woman has had previous abdominal surgery through a midline scar, surgeons often open through the same scar again during later births.
How many CS are safe?
This inside view of childbirth also sheds light on why healing varies so much from one woman to another. "There is no fixed number of safe caesarean sections," Dr Lalani says. "But after three, the risk of placenta accreta or previa, where the placenta attaches to or covers the old CS scar, increases. Once you reach four or five, the danger to the mother becomes higher."
How soon can a woman conceive again?
"The minimum interval between deliveries, whether vaginal or caesarean, is about eighteen months. Once the baby is a year old or a little older, you can start trying again," she says.
Although the Royal College of Obstetricians gives no strict limit, Dr Lalani says shorter gaps of less than twelve months have been linked to preterm birth and scar dehiscence, which is when the scar on the uterus begins to separate. The risk is small but real.
Recovery after CS?
Healing after a caesarean section is not only about time. It depends on how the wound was made and how the body responds.
"We recommend at least six weeks for the scar to heal. Everything starts in the operating theatre. The way the wound edges are aligned, how much tension is placed on the stitches, and the type of suture material used all influence recovery," Dr Lalani says.
After surgery, she advises mothers to eat balanced meals, avoid heavy lifting, and keep the wound clean and dry. A check-up after two weeks helps the doctor assess whether healing is on track. Around the fourth month, gentle exercises can begin to strengthen the abdominal muscles, but only gradually.
Body size also matters. "Fat tissue has less blood flow, so healing is slower," she explains. "Folds of skin can trap sweat, especially during breastfeeding, and this moisture can lead to infection."
Itching after CS
Many mothers experience discomfort or itching on their scars even months later which Dr Lalani says is usually normal. "When you have abdominal surgery, several layers of skin and muscle are cut through, and each layer has tiny sensory nerves. As they heal, the nerves grow back. Sometimes they grow in a way that causes tingling, numbness or sensitivity," she says.
In other cases, the nerves can get caught in scar tissue, causing a sharp or burning sensation long after the surgery. The itch, she explains, comes from the way the scar matures. "As collagen fibres tighten and reshape, they can irritate the small nerve endings in the skin. It is worse in hot weather or when clothes rub against the area."
Women who have thick hypertrophic or keloid scars may feel the itch more intensely and for longer periods.
CS wound is not healing properly?
Some warning signs during recovery, however, should never be ignored. Dr Lalani says these include, "Persistent pain, redness, swelling, fever, foul-smelling discharge, or wound separation are red flags."
Others include dizziness, blurred vision, chest pain, breathlessness, or swelling in one leg. Pain when passing urine, high blood pressure, or general weakness also require urgent medical review.
