Swelling in the uterus after a C-section

The uterus remains enlarged immediately after birth and gradually contracts. Cramping can become more noticeable during breastfeeding because oxytocin encourages uterine contractions. Soreness in the lower abdomen may also come from the abdominal incision, muscles, bowel changes, or a full bladder, so the sensation is not always coming from the uterus itself.

Increasing tenderness, a swollen or hard abdomen, fever, unpleasant-smelling vaginal discharge, or feeling increasingly ill can point to infection or another postnatal problem. Heavy bleeding, large clots, faintness, or a racing heartbeat need urgent assessment. Pre-eclampsia can also occur after birth, including after a caesarean, with headache or visual symptoms.

Follow your discharge instructions, take prescribed pain relief as directed, keep the incision clean and dry, and walk gently as advised to support circulation. Avoid lifting anything heavier than your baby until your clinician says it is safe, and brace your abdomen when coughing or changing position.

Rest when possible and accept help with feeding, meals, and household tasks. Do not press repeatedly on the uterus or incision to test swelling. Record bleeding, temperature, pain location, and whether symptoms are improving so your postnatal team can judge the pattern.

Contact your maternity service promptly for pain that is worsening rather than easing, redness or discharge from the incision, fever, new abdominal swelling, difficulty passing urine, or vaginal discharge with an unpleasant smell.

Seek emergency care for heavy bleeding, fainting, severe headache with vision changes, chest pain, sudden breathlessness, or one-sided leg swelling and pain. These symptoms should not wait for a scheduled postnatal appointment.

Ask whether your uterus and incision are healing as expected, how to distinguish uterine cramps from wound pain, and which activity limits apply to you. Ask when to call about bleeding, fever, or pain and whether postnatal physiotherapy could help your recovery.