Vaginal Prolapse Prevention: Managing Pre-Calving Prolapse

It Starts as a Nuisance but Can Turn Life-Threatening if You Don't Manage It

Vaginal prolapse (the protrusion of vaginal tissue through the vulva) is a common and frustrating problem in pregnant cattle. Unlike uterine prolapse, which occurs after calving, vaginal prolapse typically develops in the last weeks of pregnancy and can go from a minor nuisance to a life-threatening emergency if it is not properly managed.

This guide covers recognition, staging, management options, and long-term decisions for cows that develop vaginal prolapse.

Understanding Vaginal Prolapse

What Is Happening

During late pregnancy, pelvic ligaments relax in preparation for calving. At the same time, the growing fetus and any excess internal fat increase abdominal pressure. In susceptible cows, this combination pushes vaginal tissue outward through the vulva.

Timing of Occurrence

Vaginal prolapse most commonly appears in the last 2 to 4 weeks before calving, though it can begin earlier in some cases. It tends to worsen as pregnancy progresses. While it may resolve after calving, cows that prolapse once have a 30 to 40% chance of doing it again on the next pregnancy.

Recognizing and Staging

Visual Identification

The prolapse varies in size from a small bulge to a large protrusion of tissue outside the vulva. It is often intermittent at first, appearing when the cow lies down and retracting when she stands. As the condition progresses, the tissue may remain out continuously. In severe cases, the bladder can become trapped in the prolapsed tissue.

Severity Staging

Grade 1 (Mild): The tissue protrudes only when lying down and retracts when the cow stands. There is no tissue damage, and the tissue appears pink and healthy.

Grade 2 (Moderate): The prolapse may only partially retract with position changes. Surface irritation begins to develop, and some swelling is visible.

Grade 3 (Severe): The bladder is often involved at this stage, with noticeable tissue swelling and damage. The cow strains actively and may have difficulty urinating.

Grade 4 (Critical): Tissue has become necrotic (dead or dying). The cow may be showing signs of toxicity. This is a life-threatening situation requiring immediate veterinary attention.

Differentiating from Other Conditions

Comparison Table

Causes and Risk Factors

Primary Causes

The physical causes include relaxed pelvic ligaments, a large fetus or multiple fetuses, excessive body condition, and short body length relative to abdominal capacity. Hormonal factors also play a role, including possibly abnormal estrogen exposure and the effects of relaxin on pelvic ligaments.

Risk Factors

Hereditary Component

Daughters of cows that prolapse are more likely to prolapse themselves, so consider the genetic component when making culling decisions. Breed susceptibility varies, with Brahman-influenced cattle tending to have lower rates. However, individual family lines matter more than breed in most herds.

Management Strategies

Conservative Management (Grade 1)

For mild cases, increase monitoring frequency and watch for progression. Make environmental modifications by keeping the cow on level ground (not sloped) with soft bedding, and reduce any other causes of straining. Adjust nutrition by reducing bulk in the diet (less hay, more concentrate) while maintaining adequate overall nutrition without overfeeding. A mildly laxative diet helps prevent straining at defecation. Many Grade 1 cows will deliver normally, but stay prepared for intervention if the condition worsens.

Prolapse Retention Devices

A retention device is inserted into the vagina after replacing the prolapse and holds the tissue in place. Various designs are available, and proper fitting and monitoring are required. The advantage is that these can be applied in the field and allow calving with removal. The downsides are that they may not stay in place, they require regular monitoring, and some cows calve with the device still in, which can cause tearing.

Surgical Options

The Buhner suture is the most common surgical approach. It partially closes the vulvar opening by passing suture material under the skin around the vulva, then tightening it enough to retain the prolapse while still allowing urination. The suture must be removed or cut before calving, either shortly before or during early labor. This procedure can be placed under local anesthesia, and your veterinarian will select the approach best suited to each case.

Emergency Care (Severe/Critical)

For Grade 3 or 4 prolapses, keep the cow calm and cover the exposed tissue with a clean, wet towel. Call your veterinarian immediately and prepare for the possibility of a C-section or salvage slaughter.

When to Call the Veterinarian

Immediate Call Needed

• Grade 3 or 4 prolapse
• Tissue appears damaged or necrotic
• Cow straining excessively
• Cannot urinate
• Cow in distress
• Uncertain how to manage

Veterinary Consultation Advisable

If this is your first time dealing with a prolapse, if the prolapse does not reduce easily, if you are planning to suture, or if you need help deciding between culling and treatment, a veterinary consultation will save you time and potential losses.

Calving Management

Pre-Calving Preparation

Watch sutured cows even more closely for signs of labor than you would other cattle. Plan for suture removal and have your veterinarian on call.

During Calving

Remove the suture before the calf starts pushing against it. Have sharp scissors or a blade ready, and cut where the suture is accessible. Once the suture is out, monitor the cow closely for delivery and be prepared to assist if needed.

After Calving

Cows that had a vaginal prolapse during pregnancy are at higher risk for uterine prolapse after delivery. Monitor for retained placenta as well. After calving, assess whether to re-suture or cull based on the severity of the prolapse, the cow's overall value, and whether you want to deal with this again next year.

Long-Term Decisions

To Breed or Not to Breed

The arguments for culling are substantial: each pregnancy brings a management burden, severe prolapse carries a risk of death, the trait may pass to daughters, and treatment and monitoring costs add up. The arguments for keeping the cow include her age (a young cow with many productive years ahead), the severity of her case (a mild prolapse may be manageable), and your willingness to accept the monitoring burden each pregnancy.

Culling Recommendations

Strong candidates for culling include cows that required surgical intervention, those whose prolapse occurred very early in pregnancy, repeat offenders (2 or more pregnancies), and cows of low individual value. Daughters from severe cases should also be scrutinized. Cows worth keeping tend to be those with high genetic or economic value, a first occurrence only, and a good response to conservative management.

Replacement Heifer Decisions

If you keep daughters from cows that prolapsed, monitor them closely during their first pregnancy. Do not retain daughters from severe cases, as the hereditary risk is too high.

Prevention Strategies

Nutritional Management

Reduce bulky feed in late pregnancy while maintaining adequate protein. Managing fiber intake to prevent rumen overdistension helps reduce abdominal pressure on the pelvic area.

Environmental Management

Provide soft, comfortable bedding with adequate space and good drainage. Keep conditions dry and the diet balanced to prevent constipation. Good ventilation reduces coughing, which is a surprising but real contributor to prolapse.

Genetic Selection

Don't retain replacement heifers from prolappers, select for appropriate body type, and consider short versus long-bodied conformation in your breeding decisions.

Treatment Decision Flowchart

``` VAGINAL PROLAPSE IDENTIFIED | Assess severity | +---------------------------------------------+ | | | GRADE 1 GRADE 2 GRADE 3-4 (intermittent) (persistent) (severe) | | | Monitor closely Consider: CALL VET Reduce bulk feed - Retention device IMMEDIATELY Level ground - Buhner suture | | | May calve Remove/cut Emergency normally before calving management | | | POST-CALVING: Assess and decide on future | CULLING vs. REBREEDING DECISION ```

Comparison: Treatment Options

Records and Documentation

What to Record

• Date first noticed
• Severity grade
• Stage of pregnancy
• Treatment applied
• Outcome
• Decision (cull/keep)

Using Records

Review your prolapse records over time to look for correlations with body condition, timing patterns within the season, and treatment success rates. This data drives better management decisions in future years.

Frequently Asked Questions

The Bottom Line on Vaginal Prolapse

Vaginal prolapse is a frustrating condition that takes careful management decisions. Early recognition and the right intervention can let affected cows deliver successfully, but the high recurrence rate means difficult culling decisions often follow. Having a management plan for each severity grade, and making informed breeding decisions afterward, are the keys to minimizing the impact of this common problem.

Related Resources

• Uterine Prolapse Emergency
• Preparing for Calving Season
• Post-Calving Cow Care
• Dystocia: When Calving Goes Wrong

References

• Miesner, M.D., Anderson, D.E. "Management of uterine and vaginal prolapse in the bovine." Veterinary Clinics of North America: Food Animal Practice.
• University of Nebraska-Lincoln. "Vaginal Prolapse in Beef Cows." beef.unl.edu
• Noakes, D.E., et al. "Arthur's Veterinary Reproduction and Obstetrics." Saunders Elsevier.
• Kansas State University Extension. "Pre-Calving Problems." asi.k-state.edu
• Fubini, S.L., Ducharme, N.G. "Farm Animal Surgery." Saunders Elsevier.
• Beef Cattle Research Council. "Calving Management." beefresearch.ca