Nurses push on your stomach after a C-section to check that your uterus is contracting and shrinking the way it should. This hands-on check, called a fundal massage, is one of the main ways your care team catches dangerous bleeding early. It feels intense, especially on top of a fresh surgical incision, but it serves a critical purpose: preventing postpartum hemorrhage, which is heavy bleeding from the uterus in the first 24 hours after birth.
What They’re Actually Checking For
When a nurse places a hand on your lower abdomen and presses down, they’re feeling the top of your uterus (called the fundus). They’re looking for two things: where the top of your uterus sits and whether it feels firm. A firm uterus that’s steadily shrinking is a good sign. It means the muscle fibers are clamping down on the blood vessels that fed the placenta, which naturally slows bleeding.
A soft, squishy uterus is a warning sign. The medical term is uterine atony, and it means the uterine muscle isn’t tightening the way it needs to. When the uterus stays relaxed and loose after delivery, those blood vessels remain open, and blood loss can escalate quickly. Uterine atony is the single most common cause of postpartum hemorrhage. Your care team can usually detect it just by feeling the size and softness of your uterus through your abdomen, which is why they keep coming back to press on it.
How Pressing Helps Prevent Bleeding
The pushing isn’t just an assessment. It’s also a treatment. When nurses use repetitive massaging or squeezing movements on your lower abdomen, the physical stimulation triggers the uterus to contract. This happens because the pressure encourages your body to release natural chemicals called prostaglandins at the site, which signal the uterine muscle to tighten. Think of it as a manual nudge that tells your uterus to keep doing its job.
In one clinical trial of 200 women, uterine massage performed every 10 minutes for 60 minutes after delivery of the placenta reduced the average blood loss by roughly 77 mL at the one-hour mark compared to no massage. The need for additional medications to control bleeding dropped by about 80% in the massage group. That’s a significant difference from a simple, no-cost intervention. The pressure also helps expel any blood clots that have pooled inside the uterus, which could otherwise prevent the muscle from contracting fully.
Why It Hurts So Much After a C-Section
There’s no way around it: having someone press firmly on your abdomen when you have a fresh surgical incision is painful. Many people describe it as one of the most uncomfortable parts of their entire birth experience. The pressure has to be firm enough to reach the uterus through your abdominal wall, and that means pushing directly over or near the incision site.
On top of the surgical pain, your uterus itself is cramping. These contractions, sometimes called afterpains, can feel like strong menstrual cramps or even mild labor contractions. They tend to be more intense if you’ve had a previous pregnancy, and breastfeeding in the first few days can make them stronger because nursing triggers the same hormone (oxytocin) that causes uterine contractions. Applying a heating pad to your abdomen between checks can help. Ibuprofen tends to work better than acetaminophen for this type of cramping pain.
How Often It Happens
Expect the checks to be most frequent in the first few hours after surgery. Nurses typically assess your fundus every 15 minutes for the first hour or two, then space the checks out to every 30 minutes, then every hour, and eventually every few hours as your recovery progresses. By the time you’re approaching discharge, the checks are much less frequent. Each assessment lasts only seconds if your uterus feels firm. If it feels soft, the nurse will massage longer until it firms up, which is where the real discomfort comes in.
Most hospitals continue some form of fundal checks for the first 24 hours after delivery. After that, your care team monitors your bleeding through other signs like the amount of blood on your pads and your overall vital signs.
What Happens If Your Uterus Doesn’t Firm Up
If massage alone isn’t enough to get your uterus contracting, your medical team has several next steps. They’ll typically give you medications that promote uterine contractions, either through your IV or as an injection. In most cases, the combination of massage and medication resolves the issue. The International Federation of Gynecology and Obstetrics recommends uterine massage specifically as a treatment for postpartum hemorrhage, while noting that when oxytocin has already been given preventively, sustained massage on its own doesn’t add extra benefit for prevention. In other words, the massage becomes especially important when something isn’t going right.
Your uterus continues shrinking over the following days and weeks in a process called involution. During your hospital stay, your provider tracks this progress by checking how far the top of your uterus has descended. Right after birth, it sits near your belly button. Over the next 6 to 8 weeks, it gradually returns to its pre-pregnancy size deep in your pelvis. If involution stalls or your uterus remains larger and softer than expected, that’s a signal for your care team to investigate further.
How to Get Through It
Knowing what to expect makes a real difference. Ask your nurse to tell you before they begin so you can prepare. Some people find it helps to take slow, deep breaths during the check, similar to how you might breathe through a contraction. If you’re due for pain medication, timing it so the check falls after the medication has kicked in can take the edge off. You can also ask to hold a pillow gently against your incision for a bit of counterpressure and comfort.
The checks get less painful as hours pass. Your incision area becomes less acutely tender, your uterus contracts more reliably on its own, and the assessments become quicker because less stimulation is needed. By the second day, most people find the checks uncomfortable but manageable rather than the sharp, surprising pain of those first few hours.