First period after a C-section: very heavy and bright red

After birth, lochia can change colour and gradually lessen before stopping. A period usually follows a gap without ongoing postpartum bleeding, although timing varies and breastfeeding can delay it. Bright-red blood alone does not show which process is happening. A caesarean birth does not make every heavy bleed an emergency, but bleeding with worsening abdominal pain, fever, foul-smelling discharge, or feeling unwell can signal a complication that needs review. Pre-eclampsia can also cause serious symptoms after birth, particularly severe headache, visual changes, or upper abdominal pain.

Use pads while you are assessing the flow, and note how quickly they become wet, the presence of clots, pain, temperature, and any dizziness. Do not use tampons until your maternity team says they are appropriate. Keep your postnatal contact details available and tell the clinician when your C-section occurred, whether bleeding had stopped, whether you are breastfeeding, and which medicines you take. Postnatal Physiotherapy can help with recovery concerns, but it is not a substitute for assessment of heavy bleeding.

Get emergency help for rapidly increasing bleeding, faintness, confusion, breathlessness, chest pain, severe or one-sided abdominal pain, fever, or a wound that is becoming red and painful. Seek urgent advice for severe headache, vision changes, or pain beneath the ribs. If the bleeding is heavy but you feel stable, contact your maternity or gynaecology team promptly for guidance.

Ask whether this is lochia or menstruation, whether your C-section wound and uterus need checking, and whether blood tests are needed. Ask when to restart internal menstrual products, how breastfeeding affects cycle timing, and which pain relief is suitable for you.