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Sheep dystocia
We speak of dystocia when the ewe cannot give birth alone. It is one of the leading causes of lamb and ewe loss during the lambing season. Time is the deciding factor. A stranded lamb lacks oxygen: every hour lost reduces its chances, and t...
What is it?
We speak of dystocia when the ewe cannot give birth alone. It is one of the leading causes of lamb and ewe loss during the lambing season.
Time is the deciding factor. A stranded lamb lacks oxygen: every hour lost reduces its chances, and the ewe's uterus is damaged.
The rule is simple to remember: a sheep that pushes hard without anything progressing must be seen quickly. Waiting and hoping for the best is the most common cause of lamb and mother death.
Key point
A ewe having strong contractions with no progress is a veterinary emergency. The chances of saving the lamb and the mother diminish by the hour.
Commonly observed signs
These signs are neither exhaustive nor specific. Only a veterinarian can establish a diagnosis.
Related signs — each one links to its page:
Strong and repeated contractions without any lamb appearing.
A sheep that pushes, lies down, gets up again, scratches the ground, groans, then becomes exhausted and stops pushing without having lambed.
Bag of waters broken for a while without any lamb following.
Two legs visible at the vulva without the head coming, or a head alone without the legs, or only one leg: these are abnormal presentations.
Tail or hindquarters which comes first.
Brown, bloody or smelly vulvar discharge: a sign of old labor or a dead lamb.
Sheep lying down, exhausted, no longer getting up, rapid breathing, pale mucous membranes.
Lamb visible but stuck, tongue swollen and protruding, indicating prolonged compression.
When to consult without delay
This list does not replace veterinary advice. It gathers situations that justify a prompt consultation.
Causes and risk factors
Two large families of causes, on the side of the sheep and on the side of the lamb.
On the side of the ewe: cervix which does not open, pelvis too narrow in a ewe bred too young or too small, insufficient contractions in an exhausted ewe, too fat, deficient or sick, torsion of the uterus.
On the lamb's side: lamb too large in relation to the ewe, abnormal position (head turned, leg folded, hindquarters first), two lambs presenting at the same time, dead or malformed lamb.
Multiple litters often present poorly because the lambs become entangled at the pool entrance.
A ewe that is too fat or too thin at the end of gestation lambs poorly: the body condition is prepared months in advance.
Ewe put out for breeding too young or too underdeveloped.
Ewe too fat or, conversely, too thin at the end of gestation.
Multiple spans.
Single, very large lamb, common in overfed ewes or with certain rams.
Heavy breed ram used on small ewes.
History of difficult lambing in the same ewe.
Ewe deficient in minerals, ewe suffering from a disease at the end of gestation.
Lack of supervision of lambing, particularly at night.
Disturbance of the ewe during labor: stress can interrupt contractions.
Diagnosis and care
Diagnosis is the veterinarian's responsibility, based on clinical examination and laboratory tests. Care is decided case by case.
The veterinarian first determines whether the cervix is open, then identifies the position of the lamb through a manual examination carried out with strict hygiene.
Depending on what he finds, he puts the lamb back in the right position and extracts it, or he decides on a cesarean section. This decision must be made early: a cesarean section carried out on time often saves the ewe and the lambs, while a late cesarean section intervenes on a damaged uterus and an exhausted ewe.
He checks that there is no lamb left inside: multiple litters are the rule with the ewe, and a second forgotten lamb dies.
He then examines the ewe (tears, bleeding, general condition) and the extracted lambs, which often need to be decluttered and warmed.
If you have to wait: place the ewe in a quiet, clean, mulched pen, do not make it run, and do not introduce anything into the vulva without the advice of your veterinarian.
If you have to intervene under his direction, hands and arms must be thoroughly washed, nails short, and abundant lubrication is essential: most serious lesions of the uterus are caused by dirty, dry or pressed hands.
Treatment
Treatment depends entirely on the cause, and only an examination can determine it: there is no single course of action valid for all difficult lambings.
When the position of the lamb is in question, it is corrected then the lamb is extracted gently, in the direction of the contractions, never by pulling forcefully or with several people.
When the lamb cannot pass, a cesarean section is the right solution, and it is better to do it early than too late.
Medical treatment may then be necessary: support for the ewe, pain management, antibiotics if the uterus has been manipulated or if labor has been going on for a long time. It's the veterinarian who judges.
Extracted lambs must be decluttered, dried, warmed and put to suckle quickly: they are very exposed to hypothermia.
After a difficult lambing, the ewe must be monitored for several days: appetite, temperature, discharge, and ability to breastfeed.
Never use a product intended to trigger or strengthen contractions without a prescription: given to a closed cervix or to a poorly placed lamb, it causes rupture of the uterus.
Treatment depends on the cause and the animal's condition: it must be determined by a veterinarian. No self-medication.
Prevention
Only breed ewes that are sufficiently developed.
Monitor the body condition of the ewes at the end of gestation: neither too fat nor too thin. This is the most effective measure and must be prepared months in advance.
Adapt the choice of ram to the size of the ewes, particularly for ewe lambs.
Separate ewes close to lambing into a monitored lot, with clean lambing pens.
Monitor lambing, including at night, and know how to recognize when labor is no longer progressing.
Ensure a good mineral diet at the end of gestation.
Do not unnecessarily disturb a sheep that is giving birth normally.
Culling ewes that have repeated lambing difficulties.
Prepare before the season what you need to intervene properly: clean water, soap, lubricant, gloves, and the veterinarian's number.
Possible complications
Death of the lamb from lack of oxygen, more likely as the labor continues.
Death of the ewe due to exhaustion, hemorrhage or rupture of the uterus.
Tears in the birth canal, infection of the uterus in the days that follow.
Retention of the placenta, with risk of general infection.
Temporary paralysis of the hindquarters by compression of the nerves of the pelvis: the ewe no longer gets up.
Prolapse of the uterus after forced extraction.
Ewe who does not accept her lamb after a traumatic lambing, or who does not produce enough milk.
Infertility for the following season.
When to see a veterinarian
Your ewe has been pushing hard for a while and nothing is progressing: call immediately, it's a typical lambing emergency.
The bag of waters is broken and no lamb follows.
You see a single leg, a legless head, or the lamb's hindquarters at the vulva.
She has stopped growing without having lambed, she is exhausted or lying down without getting up.
The discharge from the vulva is brown, bloody, or smelly.
She has lambed but remains despondent, won't eat, or you suspect a lamb has been left inside.
You have tried to intervene and you are not succeeding: stop and call, each additional attempt damages the uterus.
Prognosis
Dystocia caught early is very often resolved with live lambs and a fully recovered ewe.
After a certain time, the lamb dies and the ewe is exposed to lesions and serious infections: the prognosis deteriorates hour by hour.
After an intervention carried out in good conditions, most of the ewes can be returned to breeding the following season; After a very traumatic lambing, culling is sometimes the most reasonable decision.
Frequently asked questions
How long can I wait before calling?
The benchmark is not a duration that we apply everywhere, it is the absence of progression. If the ewe is pushing hard and nothing is moving forward, or if her waters have broken and no lamb is following, call. Waiting costs lambs.
Can I pull on the lamb's legs?
Only if the position is normal and under the guidance of your veterinarian, gently and in the rhythm of the contractions. Pulling forcefully, or pulling on a poorly placed lamb, tears the uterus and often kills both animals.
Are my hands clean enough to look?
An exploration is done with carefully washed hands and arms, short nails, with abundant lubricant. A dirty or dry hand causes damage and infections to the uterus. When in doubt, call rather than explore.
How do you know if there is a lamb left inside?
We cannot be sure from the outside, and multiple litters are common in sheep. If you have any doubts, especially after a difficult lambing, have it checked: a forgotten lamb dies and infects the ewe.
Can a ewe who has had a C-section lamb again?
Often yes, when the intervention was carried out early and in good conditions. But if the difficulty comes from its size or its pelvis, it will recur: your veterinarian will tell you if it is better to reform it.
References
AVMA — American Veterinary Medical Association
Content reviewed by the TunisieVet editorial team · Updated 09 August 2026
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