Smelly Discharge After Birth

When to call

Contact your midwife, GP or public health nurse immediately — the same day — if your discharge or bleeding smells bad or unusual for you. That is the HSE's wording in Ireland, and it is listed under urgent advice, not general advice. The HSE puts it alongside heavy bleeding or large clots, tummy pain that is severe, and a fever, especially over 38 degrees Celsius.

NICE NG194 tells midwives to warn you at the first postnatal contact to seek medical advice without delay if you get "abdominal, pelvic or perineal pain, fever, shivering, or vaginal discharge with an unpleasant smell, which could indicate infection."

Call 999 if the bleeding is sudden and very heavy, or you feel faint, dizzy or have a pounding heart. The NHS says that combination "could mean you're having a very heavy bleed (postpartum haemorrhage) and need emergency treatment."

What normal actually smells like

Lochia is not odourless. The HSE describes it plainly: bloody discharge that can last up to six weeks, "bright red at first," changing "to brown and eventually to a yellow or whitish colour as your uterus heals." A metallic, period-like smell goes with that, and it gets stronger if a pad has been on for hours.

The distinction the guidelines draw is not "smell versus no smell." It is unpleasant or unusual for you. Foul, fishy, rotten, or a smell that makes you or your partner recoil across the room is the flag. So is a smell that arrives suddenly after days of ordinary lochia.

One practical confounder: if you have stitches, the HSE also lists a wound that "becomes open or starts to ooze green or smelly fluid" as urgent. A perineal wound infection and a womb infection can smell similar from the outside. You do not have to work out which it is.

Endometritis: infection of the womb lining

The NHS names endometritis directly when explaining delayed postpartum haemorrhage: bleeding after the first 24 hours and up to 12 weeks after birth "can also happen because part of the placenta has been left in your womb or you get an infection in the lining of the womb (endometritis)."

The picture usually combines several of these, not just one: offensive discharge; bleeding that gets heavier again after settling; lower tummy pain or tenderness; a temperature; shivering; feeling generally unwell. NICE NG194 groups them together for exactly this reason — it asks clinicians to check vaginal discharge and bleeding, pain, and signs of infection at every postnatal contact as a set.

Endometritis is treated with antibiotics. It is more likely after a caesarean, a long labour, prolonged rupture of membranes, or an assisted birth — the same list NICE uses in its sepsis guidance for recently pregnant people.

Retained placental tissue

NICE NG194 tells midwives to warn about "sudden or very heavy vaginal bleeding, or persistent or increased vaginal bleeding, which could indicate retained placental tissue or endometritis."

The pattern people describe is bleeding that never really tapers, or that tapers and then picks up again in week two or three, sometimes with clots and a smell. It is diagnosed with an examination and usually a scan. Treatment depends on how much tissue is left and whether there is infection.

NG194 also flags two things that make a secondary bleed worse if it happens: existing anaemia, and weighing less than 50 kg at the booking appointment. Worth mentioning if either applies to you.

Other things it might be

Not every unusual smell is a womb infection.

• A urinary infection. The HSE lists "pain when you pee, peeing more often or smelly urine" as its own urgent item, and the NHS notes that dark or smelly pee on its own may simply mean you have not been drinking enough water.
• Thrush. Common after antibiotics in labour, usually itchy and thick rather than foul.
• A retained swab or tampon. Rare, but it happens, and it produces a very distinctive smell. Say so if you think it is possible; nobody will be shocked.

What not to do

Do not try to mask it. Do not douche or use internal washes. And do not put anything inside while you are still bleeding — the HSE's instruction is blunt: "Do not use tampons or menstrual cups (moon cups) until after your 6 week check with your GP. They could increase your risk of infection."

The one thing that genuinely helps is basic hygiene, which NICE spells out: "the importance of good perineal hygiene, including daily showering of the perineum, frequent changing of sanitary pads, and hand washing before and after doing this."

What is expected to change, and when

The NHS says postnatal bleeding "usually stops after 6 to 8 weeks, but it can last longer," and adds: "Speak to your GP, midwife or health visitor if you're worried." Alongside that it lists the specific combination that suggests infection rather than ordinary healing: postnatal bleeding plus a high temperature over 38C, bleeding that smells unusual for you, tummy pain that gets worse, bleeding that gets heavier or does not get any less, clots, or perineal pain that gets worse.

Notice how many of those are about direction of travel rather than absolute amounts. Discharge that is gradually fading from red to brown to yellow-white is doing what it should. Discharge that reverses — brightening, thickening, smelling worse, or arriving with pain that is increasing rather than easing — is the pattern that needs a phone call, even if the volume is small.

How to make the phone call land

Say three things, in this order: how long ago you gave birth, what the discharge smells and looks like now compared with a few days ago, and whether you have a temperature, pain or heavier bleeding. Being inside six weeks of birth puts you in a formal high-risk group for sepsis under NICE guidance, and saying so tends to change the speed of the response.