Ghana's Free Maternal Care Skips the Scan That Detects Twins
Ghana's free maternal care covers the visits, the drugs, and the delivery. It does not reliably cover the one test that would tell a woman she is carrying two babies. In rural districts, ultrasound sits outside the routine package, and twin pregnancies are frequently found in labour rather than at 20 weeks. That is the gap this piece settles on.
The Scan That Free Care Leaves Out
Ghana's maternal fee exemption policy removes the cost of antenatal visits, deliveries, and some drugs from the woman's side of the ledger. It has done real work. More women book early, more deliver with a skilled attendant, and fewer families are pushed into debt by a straightforward birth. The policy is one of the country's more durable health commitments.
Ultrasound is not part of that promise at primary level. Ghana Health Service runs antenatal clinics in district and sub-district facilities, and a woman may attend four or more visits without ever lying down for a scan. Referral hospitals own the machines. The distance to those machines is the barrier, and in farming districts it is measured in hours, not minutes.
Twins are the visible cost of that omission. A multiple gestation detected at 20 weeks changes everything downstream: where the woman delivers, who attends, what equipment is on hand, how many cots are ready. Detected at 9 centimetres dilated, it changes only the level of emergency.
What Antenatal Care Actually Includes
A standard Ghana Health Service antenatal visit is not empty. The midwife weighs the woman, checks blood pressure, tests urine for protein, measures fundal height with a tape, listens for fetal heart tones with a Pinard stethoscope or a handheld Doppler, and asks about movement. Iron and folic acid are dispensed. Tetanus shots are logged. These are the interventions that catch anaemia, pre-eclampsia, and poor weight gain.
None of them reliably counts babies. Fundal height is a proxy: it estimates uterine size from the pubic symphysis to the top of the uterus, and it is calibrated to a single fetus. A twin pregnancy can measure large for dates, which is a prompt, not a diagnosis. The midwife knows this. The protocol knows this. The scan that would resolve it may be two hours away and unavailable on the day the woman can travel.
Referral hospitals, including the teaching hospitals in Accra, Kumasi, and Cape Coast, have functioning ultrasound and trained sonographers. District hospitals vary. Some have a machine and no one rostered to use it consistently. Some have neither. This site has covered how screening programmes can fail at the last mile when the logistics do not match the patient's week; the same pattern shows up here, where the scanner exists but the journey does not.
Why Twin Pregnancies Slip Through
Fundal height can miss a multiple gestation for months. A woman carrying twins may measure within normal range at 24 weeks, particularly if she is small-framed or the pregnancy is her first. Palpation by an experienced midwife can raise suspicion, but suspicion is not a diagnosis, and an equivocal finding in a busy clinic often ends with a note to review in four weeks.
Late booking compounds the problem. In farming communities, women may present after 20 weeks because travel is expensive, because the harvest does not wait, or because a previous pregnancy went smoothly and the visit feels optional. A first scan at 28 weeks still helps, but it compresses the time available for a planned referral, for arranging blood, and for the family to prepare.
Twins also run in families, and a woman with a maternal history of twins is a reasonable candidate for earlier imaging. Without a routine scan, that history is a question asked at a visit and acted on only if the referral pathway cooperates. The clinical signal is there. The tool that would confirm it is not.
There is a diagnostic trade-off that rarely gets named. A policy that scans every pregnant woman will pick up twins, but it will also pick up soft markers and minor findings that generate anxiety and further referrals without changing outcomes. In a system with limited sonographers, every scan given to a low-risk woman is a scan not given to a high-risk one. The case for universal scanning rests on the fact that risk is not always visible before the scan. A woman who looks low-risk on paper may be the one carrying two babies.
The Cost of a Missed Diagnosis
Undiagnosed twins raise the risk of obstructed labour, because the second baby can lie transverse or the uterus can fail to contract effectively after the first delivery. In a facility expecting one baby, the second presentation may be discovered only after the first is born. That is a crisis with a clock on it.
Emergency referrals then strain district transport. An ambulance that serves a wide catchment may be on another call, and the family may hire a taxi or a commercial vehicle for a journey of an hour or more on poor roads. The mother absorbs that cost, along with any complication charges the exemption does not cover. A related piece on this site describes how hospital consolidation raised birth costs without improving neonatal outcomes, and the mechanism is familiar: the money moves, the outcome does not.
Neonatal units in district hospitals are often staffed and equipped for one uncomplicated newborn. Two babies, possibly preterm and low birth weight, need resuscitation surfaces, warmth, feeding support, and monitoring that may not exist on the ward that night. The clinical team improvises. Sometimes it works.
What a Scanned Pregnancy Changes
Early detection allows a planned referral rather than an emergency one. A woman diagnosed with twins at 20 weeks can be booked into a facility with a functioning theatre, blood bank, and neonatal unit, and she can arrange transport and family support in advance. The birth plan becomes a decision instead of a scramble.
A skilled attendant present at delivery matters more in twins than in singletons, because the second stage can turn quickly. Advance notice means the right person is in the room, the theatre is aware, and oxytocin and blood are within reach. Steroids for fetal lung maturity can be given if preterm delivery is likely, and that timing depends on knowing the diagnosis early enough.
Families prepare differently for two newborns. Clothes, feeding plans, and help at home are practical matters, and they are easier to arrange over months than over hours. The scan does not guarantee a good outcome. It buys time, and in obstetrics time is the resource that changes what is possible.
Practical Steps for Policymakers and Clinicians
Add one routine obstetric ultrasound to the free maternal care package, timed around 18 to 22 weeks, so that multiple gestation and major anomalies are detected while a planned referral is still feasible. The cost per scan is modest against the cost of an emergency twin delivery.
Train district midwives in basic obstetric ultrasound, focused on fetal number, presentation, and placental position, with a clear referral threshold for anything uncertain. A midwife who can count two heads reliably is a diagnostic asset in a facility that will never employ a full-time sonographer.
Strengthen referral transport for high-risk cases, with a named contact at the receiving facility and a documented handover. A related piece on this site describes how screening vouchers expired before rural patients could redeem them; the lesson is that a referral is only as good as the journey attached to it.
Track twin deliveries as a quality indicator, recording where the diagnosis was made and whether it was made before labour. Facilities that review those numbers tend to find their own bottlenecks quickly.
This article is informational and not personalised medical advice. Women with concerns about their pregnancy should speak to a qualified health professional.
