Farrowing Complications

Most sows farrow without any trouble at all. They find a quiet corner, nest up, and deliver their piglets over a few hours while you check in periodically to make sure things are progressing. But farrowing does not always go smoothly, and when complications arise, they can escalate quickly. Knowing what normal farrowing looks like helps you recognize when something has gone wrong, and understanding the most common problems prepares you to act decisively rather than standing there wondering what to do while a sow struggles.

Farrowing complications matter because pigs are born with very limited energy reserves. A piglet that gets stuck in the birth canal or arrives weakened from a prolonged labor may not survive without immediate help. The sow herself faces real risks from exhausted labor, uterine infections, or internal injuries if things go badly wrong. Small-scale operations often cannot absorb the loss of an entire litter or a valuable breeding sow, so recognizing problems early and responding appropriately protects both your animals and your investment in your breeding program.

The good news is that most farrowing complications are manageable if you catch them in time. Prolonged labor, malpresentation, and weak piglets at birth represent the majority of problems you will encounter, and each has practical solutions that do not require veterinary intervention in most cases. More serious complications like uterine prolapse or severe hemorrhage do require professional help, but these are relatively rare when sows are properly conditioned and managed leading up to farrowing. Your job is to know the difference between a situation you can handle and one that needs the vet, and to have a plan for both scenarios before your sow goes into labor.

This guide covers the complications you are most likely to encounter, how to recognize them, and what to do when they occur. We will discuss normal farrowing progression so you can identify deviations, walk through hands-on intervention techniques for stuck piglets, and address the post-farrowing complications that can catch new breeders off guard. The goal is practical preparation that gives you confidence during farrowing rather than anxiety, because a calm handler makes for a calmer sow, and calm sows have easier births.

Before your sow is due to farrow, you need supplies assembled and accessible. Keeping these items in a dedicated farrowing kit means you are not scrambling through the barn at two in the morning looking for lubricant while a sow labors. Your kit should include obstetrical lubricant or clean vegetable oil, clean towels, iodine for dipping navels, a bulb syringe for clearing airways, dental floss or umbilical clamps for tying off cords if needed, and disposable gloves that go up past your elbow. A heat lamp or heat mat for weak piglets, a small box lined with towels for warming chilled newborns, and colostrum replacer round out the essentials. Having your veterinarian's emergency number posted where you can find it quickly matters more than you might think when you are stressed and need help.

Understanding normal farrowing progression is essential for recognizing when intervention is needed. A sow approaching labor becomes restless, may stop eating, and begins nesting behavior where she arranges bedding repeatedly. Her udder fills and becomes tight, and you may notice milk dripping from her teats in the final twelve to twenty-four hours. Active labor begins with visible contractions and the sow lying on her side. Piglets typically arrive every fifteen to thirty minutes once active labor starts, though intervals up to an hour can be normal, especially early in the process. The entire farrowing usually takes three to eight hours depending on litter size. Each piglet arrives in its own amniotic sac, which usually breaks during delivery, and the umbilical cord either breaks naturally or needs to be dealt with after the piglet starts breathing.

You need a clean, dry, warm environment for farrowing. Complications become more likely and more serious when sows farrow in cold, wet, or dirty conditions. The farrowing area should be bedded deeply with clean straw, protected from drafts, and warm enough that newborn piglets can maintain body temperature. Piglets are born wet and have almost no body fat, so they chill rapidly in cold conditions, and chilled piglets are weak piglets that may not nurse effectively. A creep area with supplemental heat gives piglets a warm zone to retreat to between nursing sessions. Cleanliness matters because the open cervix and any birth injuries create pathways for infection, and sows that develop uterine infections after farrowing often have reduced fertility or worse outcomes in future litters.

Know what you are willing and able to do yourself versus when you will call for help. This is a personal decision based on your experience, your relationship with your veterinarian, and the value of the animals involved. Many experienced pig keepers handle routine interventions like assisting a stuck piglet without calling the vet, but recognize that severe complications need professional help. If you are new to farrowing, consider having an experienced mentor available by phone for your first few litters. Discuss farrowing emergencies with your vet before your sow is due so you know their availability and protocols. Some vets will talk you through interventions over the phone, which can be invaluable when you are unsure whether what you are seeing is normal or problematic.

Once your sow goes into labor, your job is to monitor without interfering unnecessarily. Check on her every thirty minutes or so during active labor, staying quiet and calm so you do not stress her. A stressed sow may stop labor temporarily, which prolongs the process and increases risks for both her and the piglets. Note the time when active contractions begin and when each piglet arrives so you can track the intervals. Watch for piglets that arrive but do not start breathing on their own, as these need immediate attention to clear their airways and stimulate respiration.

The interval between piglets tells you a lot about how labor is progressing. Gaps of up to an hour are not necessarily concerning if the sow seems comfortable and is having occasional contractions. However, if an hour passes with strong, regular contractions but no piglet, something may be blocking the birth canal. Similarly, if the sow stops contracting altogether and seems exhausted but you know from her size that more piglets remain, she may need help. A sow that is actively straining hard for thirty minutes without producing a piglet almost certainly has a problem that needs addressing.

Newborn piglets need attention in the first minutes of life. Most will break free of their membranes, start breathing, and find their way to a teat within minutes. Piglets that arrive still fully enclosed in the amniotic sac need that membrane removed from their face immediately so they can breathe. Weak piglets that are breathing but not vigorous benefit from brisk rubbing with a clean towel to stimulate circulation and dry their coat. Make sure each piglet nurses within the first hour if possible, as colostrum intake in those early hours is critical for survival. Piglets that seem unable to compete for teats may need to be held to a teat until they latch and get their first meal.

Prolonged labor is the most common complication you will face, and it has several possible causes. Uterine inertia occurs when the uterus becomes exhausted and stops contracting effectively, which can happen in older sows, sows carrying very large litters, or sows in poor condition. A piglet that is positioned wrong or is unusually large may physically block the birth canal, preventing other piglets from passing even when contractions continue. Sometimes labor simply slows down naturally partway through a large litter, and the sow needs a rest before continuing. Distinguishing between these situations guides your response.

When you suspect a stuck piglet, an internal examination can confirm the problem and sometimes resolve it. Wash your hands and arms thoroughly, apply plenty of lubricant, and gently insert your hand into the birth canal while the sow is lying down and relatively calm. Move slowly and carefully to avoid injuring the sow. If you feel a piglet, try to determine its position. A piglet coming headfirst or rear-first in a straight line should pass normally. A piglet turned sideways, with a leg bent back, or positioned at an odd angle may need repositioning. Gentle traction during contractions can help deliver a properly positioned piglet that is simply stuck. If you cannot reposition or deliver the piglet, or if you feel something that does not seem right, stop and call your vet.

Post-farrowing complications can be as serious as birthing difficulties. Retained placentas occur when not all the afterbirth is expelled, which leads to uterine infection. The sow should pass the placentas within a few hours of the last piglet, though they sometimes come out in pieces mixed with fluid over several hours. A sow that develops a foul-smelling discharge, goes off feed, or runs a fever in the days after farrowing likely has a uterine infection that needs veterinary treatment. Mastitis, an infection of the udder, causes hot, hard, painful teats and a sick sow who will not let piglets nurse. Uterine prolapse, where the uterus turns inside out and protrudes from the vulva, is an emergency requiring immediate veterinary help.

Savage behavior, where a sow attacks or kills her own piglets, is a complication that catches many new breeders off guard. This is more common in gilts farrowing their first litter and may result from pain, confusion, or stress. Some sows snap at piglets as they are being born, which may be a response to the discomfort of birth rather than true aggression. Others become aggressive after farrowing is complete. If you observe aggressive behavior, remove the piglets to a safe warm area and give the sow time to calm down. Reintroduce the piglets under close supervision after the sow has settled. Some sows never accept their piglets and will need to have the litter fostered onto another sow or raised artificially.

Different breeds have different farrowing characteristics, and knowing what is typical for your breed helps you calibrate expectations. Heritage breeds like Berkshires, Large Blacks, and Gloucestershire Old Spots have been selected over generations for maternal ability and tend to farrow easily with minimal intervention. These sows generally have good instincts, rarely savage their piglets, and produce piglets that are vigorous at birth. The trade-off is that heritage litters tend to be smaller, often six to ten piglets compared to the twelve to sixteen common in commercial breeds.

Commercial breeds and their crosses present different challenges. Sows bred for maximum production often carry large litters that increase the risk of farrowing complications simply because more piglets means more opportunities for something to go wrong. These sows may have been selected more for growth rate and litter size than for maternal instincts, so you may see more crushing, savaging, or inadequate milk production. The piglets themselves may be less vigorous at birth than heritage piglet, requiring more attention in those critical first hours.

Gilts farrowing their first litter are at higher risk for complications regardless of breed. They have never done this before, and that inexperience shows in their behavior. Gilts are more likely to be restless during labor, to stand up and lie down repeatedly which can crush piglets, and to react with confusion or aggression when piglets start arriving. Their birth canals have never been stretched by a previous litter, so even normal-sized piglets may pass with more difficulty than they would through an experienced sow. Plan to monitor gilts more closely than you would an experienced sow, and consider farrowing crates or close supervision for first-time mothers.

The biggest mistake is intervening too soon or too aggressively. An hour between piglets with a calm, resting sow is not an emergency. A sow lying quietly between contractions is taking a normal break, not in trouble. Inexperienced breeders sometimes panic and start internal examinations or pulling on piglets when the sow would have been fine with a little more patience. Every time you put your hand inside a sow, you introduce bacteria and risk injury. Intervention should happen when there is clear evidence of a problem, not just because you are anxious.

The opposite mistake is waiting too long when intervention is actually needed. A piglet stuck in the birth canal for too long will die, and the piglets behind it will suffocate as well. A sow that has been straining hard for thirty minutes without progress is in trouble. Learning to read the difference between a sow who is resting and a sow who is exhausted takes experience, but when in doubt, a careful internal examination to check for obstruction is better than letting a difficult situation become a crisis.

Failing to prepare is a mistake that amplifies every other problem. If you do not have lubricant ready, you cannot do a proper internal examination. If you do not have a heat source available, weak piglets will chill while you scramble to find something. If you have not discussed emergencies with your vet beforehand, you will waste precious time explaining your situation when you need help immediately. Preparation costs nothing but a little time and thought, and it transforms emergencies from panicked chaos into manageable problems.

Neglecting the sow after farrowing is a common oversight. The drama of birth is over, the piglets are nursing, and you figure your job is done. But the first few days after farrowing are when uterine infections develop, when mastitis becomes apparent, and when inadequate milk production shows itself in hungry, restless piglets. Check your sow at least twice daily for the first week after farrowing, watching for fever, loss of appetite, abnormal discharge, or swollen painful udder. Catching these problems early makes them much easier to treat than waiting until the sow is seriously ill.