A rectocele is a bulge of the rectum into the back wall of the vagina, caused by weakening or tearing of the tissue layer that normally keeps the two structures apart. From the outside, it often looks like a soft, rounded swelling at or just inside the vaginal opening, and it becomes more visible when you bear down or strain. Symptoms range from a feeling of vaginal heaviness and difficulty emptying your bowels to, in many cases, nothing at all. The gap between what a rectocele looks like on imaging and whether it actually causes problems is one of the most misunderstood aspects of the condition.
What a Rectocele Actually Looks Like
If you were to stand with a mirror or have a clinician examine you, a symptomatic rectocele typically appears as a soft bulge along the back (posterior) wall of the vagina. It may be barely noticeable at rest and become more prominent when you strain, cough, or bear down. In milder cases the bulge stays inside the vaginal canal; in more advanced stages it can protrude past the vaginal opening. Clinicians grade the severity on a scale from stage 0 (no descent) to stage 4 (the vaginal wall essentially turns inside out). The tissue usually looks smooth and pink, similar to the surrounding vaginal lining, and it feels soft because what you are pressing on is the front wall of the rectum pushing forward through weakened tissue.
On imaging studies such as a defecography (a real-time X-ray taken while you attempt to evacuate), the rectocele appears as a pouch or pocket that balloons forward from the rectum into the vaginal space. Radiologists measure it by width: pouches under about 2 cm are considered small, 2 to 4 cm are medium, and anything over 4 cm is large.1PubMed Central. Rectocele: Incidental or important? Observe or operate? Contemporary diagnosis and management in the multidisciplinary era In rare cases a rectocele can grow large enough to be mistaken for a completely different type of prolapse. One case report described a large rectocele in a 71-year-old woman that clinically resembled a front-wall (bladder) prolapse because of its sheer size.2European Journal of Innovative Medical Research. Giant Rectocele Mimicking Cystocele in an Elderly Woman with Long-Term Manual Vaginal Splinting After Home Deliveries
The Core Symptoms
The classic symptom cluster involves some combination of vaginal and rectal complaints. Women with symptomatic rectoceles generally report perineal and vaginal pressure, difficulty passing stool, constipation, and the need to press on the vagina or perineum to help empty the rectum.3Clinics in Colon and Rectal Surgery. Rectocele Other complaints tied to rectoceles include pelvic pain, fecal incontinence, and impaired sexual function.4Obstetrics & Gynecology. Evaluation and treatment of women with rectocele: focus on associated defecatory and sexual dysfunction The frustrating truth is that the size of a rectocele does not reliably predict how bad the symptoms will be. Some people with large pouches have minimal trouble; others with modest ones are miserable.
Bowel-related symptoms tend to dominate the picture and are the most common reason people seek treatment. Difficulty evacuating stool is the hallmark complaint. The rectal pouch acts like a dead-end pocket: stool enters it during a bowel movement but cannot be pushed forward efficiently, leaving you with a persistent feeling that you haven’t fully emptied. You may find yourself straining for a long time, returning to the toilet repeatedly, or relying on laxatives that do not quite solve the problem because the obstruction is mechanical, not chemical.
Manual Splinting and Why It Matters
One of the most distinctive and underrecognized signs of a rectocele is the need for “splinting,” which means pressing a finger into the vagina or against the perineum to physically push the bulge back and make it possible to pass stool. In one imaging study of women with defecatory difficulty, roughly six in ten used this technique, either by supporting the vagina internally or pressing on the perineal body.5PubMed Central. Assessment of Women With Defecatory Dysfunction and Manual Splinting Using Dynamic Pelvic Floor Magnetic Resonance Imaging If you find that you cannot complete a bowel movement without manually supporting the vaginal wall, that is a strong clinical indicator that a rectocele is contributing to obstructed defecation rather than being an incidental finding.
What research tends to understate is how emotionally loaded this symptom is. Qualitative studies have found that women who rely on digitation often experience shame, embarrassment, and anxiety that make it harder to bring the problem up with a doctor. The emotional burden adds to the physical one and can delay treatment for years.6PubMed Central. Women’s experiences of managing digitation: do we ask enough in primary care? Clinicians who do not ask specifically about splinting during a pelvic floor evaluation are likely to miss the connection.
Effects on Sexual Function
Rectoceles can interfere with sex, though the mechanism and severity vary. Before surgical repair, the most common complaints in one study were a painful prolapse sensation, pain during intercourse, and a feeling of vaginal heaviness. After repair, desire, satisfaction, and pain scores all improved significantly, while arousal, lubrication, and orgasm did not change in a statistically meaningful way.7PubMed. Sexual function after rectocele repair That pattern suggests the rectocele itself contributes more to discomfort and self-consciousness than to the neurological aspects of arousal. Still, a persistent bulge that you can feel during sex, combined with pelvic pressure and worry about what a partner might notice, is enough to dampen intimacy for many people.
Whether the prolapse directly causes sexual problems or whether the two simply coexist in women with broader pelvic floor weakness remains a genuinely unresolved question.4Obstetrics & Gynecology. Evaluation and treatment of women with rectocele: focus on associated defecatory and sexual dysfunction In practice, if sex is uncomfortable and you have a known rectocele, it is worth discussing with a pelvic floor specialist rather than assuming you need to live with it.
Why Most Rectoceles Never Cause Problems
This is the part that surprises most people. Rectoceles are extremely common in the general population. In one defecography study of asymptomatic female volunteers, 93 percent had a measurable rectocele, with an average pouch size of about 2.5 cm. In a separate group evaluated by MRI, roughly 62 percent of women with no pelvic complaints had a rectocele larger than 2.5 cm, though fewer than one in ten exceeded 4 cm.1PubMed Central. Rectocele: Incidental or important? Observe or operate? Contemporary diagnosis and management in the multidisciplinary era In other words, finding a rectocele on an imaging scan does not automatically mean it is the source of your symptoms. Many women live their entire lives with a moderate-sized rectocele and never know it exists.
The clinical challenge is distinguishing the rectocele that is causing obstructed defecation from the one that merely happens to be there while something else is responsible for the trouble. Pelvic floor dysfunction frequently involves more than one compartment at a time. The same MRI study of women who relied on splinting found that over 70 percent had defects in multiple pelvic compartments, such as a rectocele combined with a cystocele (bladder prolapse) or a levator muscle injury.5PubMed Central. Assessment of Women With Defecatory Dysfunction and Manual Splinting Using Dynamic Pelvic Floor Magnetic Resonance Imaging Treating the rectocele alone in that setting may not fix the problem.
How Rectoceles Are Diagnosed
A physical examination during straining is the starting point. Your clinician will ask you to bear down while they observe the vaginal walls, looking for posterior bulging and estimating stage. For many women with obvious symptoms and a clear bulge on exam, no imaging is needed before starting conservative treatment.
When the clinical picture is unclear or surgery is being considered, imaging helps pin down the anatomy. Conventional defecography (a barium X-ray done while you attempt to evacuate) has been the traditional standard. MRI defecography is an alternative that avoids radiation and gives a wider view of all three pelvic compartments at once. In direct comparisons, the two methods have broadly similar sensitivity for detecting rectoceles, around 70 to 80 percent, and no statistically significant differences have been found between them.8PubMed. Dynamic MR defecography of the posterior compartment: Comparison with conventional X-ray defecography That said, one head-to-head study found MRI underreported rectocele size compared with conventional defecography and missed some cases entirely, giving it a lower sensitivity of about 62 percent in that particular comparison.9PubMed. Comparison of dynamic magnetic resonance defaecography with rectal contrast and conventional defaecography for posterior pelvic floor compartment prolapse
Dynamic endoanal ultrasound is yet another option. When compared against both MRI and conventional defecography, endosonography showed concordance rates of about 75 percent for rectocele detection, while MRI had about 82 percent concordance with the conventional standard. No statistically significant differences in sensitivity or specificity were found between the two newer modalities.10PubMed. Dynamic anal endosonography and MRI defecography in diagnosis of pelvic floor disorders: comparison with conventional defecography The practical takeaway is that no single imaging test is perfect, and the choice often depends on what equipment is available and whether your specialist needs to evaluate other pelvic structures at the same time. MRI is especially useful when an enterocele (a prolapse of small bowel rather than rectum) needs to be ruled out, because it can identify hidden enteroceles that clinical examination and standard X-ray defecography miss.11Diseases of the Colon & Rectum. Diagnosing enteroceles using dynamic magnetic resonance imaging
Conservative Treatment Options
Because many rectoceles are either asymptomatic or mildly bothersome, the first-line approach is almost always non-surgical. Dietary fiber, adequate fluid intake, and stool softeners address the mechanical side by making stools easier to pass without excessive straining. A vaginal pessary, a removable silicone device fitted by a clinician, can physically support the posterior vaginal wall and reduce the bulge during daily activities.
Pelvic floor rehabilitation, sometimes called biofeedback therapy, trains you to coordinate the muscles involved in defecation more effectively. In one small trial of women with rectocele-associated evacuatory problems, biofeedback produced at least modest symptom improvement in about 72 percent of participants, including reductions in straining, incomplete evacuation, and the need for digital assistance.12PubMed. Treatment of impaired defecation associated with rectocele by behavorial retraining (biofeedback) However, the gains can be moderate rather than dramatic, and they require consistent effort. A larger randomized trial comparing biofeedback against a surgical option (stapled transanal rectal resection) found that roughly a third of biofeedback patients met the threshold for successful treatment at follow-up, compared with over 80 percent in the surgical group.13PubMed. Outcomes of stapled transanal rectal resection vs. biofeedback for the treatment of outlet obstruction associated with rectal intussusception and rectocele So biofeedback helps many women enough to avoid surgery, but for those with significant obstructed defecation, it may not be sufficient on its own.
When Surgery Becomes an Option
Surgery is generally reserved for rectoceles that cause well-documented obstructed defecation despite conservative treatment. The two main surgical routes are through the vagina (transvaginal repair) and through the anus (transanal repair). Both approaches reduce the rectal pouch and improve symptoms, but they have different trade-off profiles.
Transvaginal repair tends to produce better anatomical correction of the bulge, while transanal repair tends to produce better improvement in rectal function. The vaginal approach carries a higher risk of new-onset pain during sex, while the transanal approach is associated with somewhat more postoperative pain.14PubMed Central. Surgical repair of rectocele. Comparison of transvaginal and transanal approach and personal technique Both routes significantly reduce the need for digitation and ease evacuation difficulty.15PubMed. Changes in bowel function following transanal and transvaginal rectocele repair
Long-term durability is a real concern. One study tracking patients at a median of about four years after surgery found that while roughly three-quarters reported improvement at one year, only about 55 to 59 percent still felt improved years later. Better long-term results were seen when the surgical correction reduced rectocele depth by 4 cm or more.16PubMed Central. Comparison of Long-term Clinical Outcomes according to the Change in the Rectocele Depth between Transanal and Transvaginal Repairs for a Symptomatic Rectocele When a rectocele recurs after initial repair, the question of whether to use mesh reinforcement comes up. In one trial of recurrent rectocele repair, polypropylene mesh produced a higher patient-reported cure rate than standard tissue plication at one year, but it also came with more surgeon-reported complications such as mesh-related issues.17PubMed Central. Repair of recurrent rectocele with posterior colporrhaphy or non-absorbable polypropylene mesh—patient-reported outcomes at 1-year follow-up The use of vaginal mesh has been the subject of significant regulatory scrutiny in recent years, and the risk-benefit calculation for mesh in this location is something to discuss carefully with a surgeon who specializes in pelvic floor reconstruction.
Risk Factors and Causes
The tissue layer that normally acts as a barrier between the rectum and the vagina is the rectovaginal septum. When this layer weakens or develops a defect, the rectum can push forward.18PubMed. The rectovaginal septum revisited: its relationship to rectocele and its importance in rectocele repair Vaginal childbirth is the most recognized risk factor, and the risk increases with the number of deliveries, prolonged pushing, large birth weight, and the use of forceps. Aging, menopause-related tissue thinning, chronic constipation with habitual straining, heavy lifting, chronic cough, obesity, and prior pelvic surgery all contribute as well. Some women develop rectoceles without any obvious risk factor, suggesting a connective tissue predisposition in certain individuals.
Rectoceles are often described as a condition of multiparous older women, but younger women and those who have never given birth can develop them too, particularly if they have connective tissue disorders or chronic straining patterns.
Rectoceles in Men
Although the condition is overwhelmingly associated with women, men can develop rectoceles too, though the anatomy is different. In men the pouch tends to push forward toward the prostate area (anterior) or backward (posterior) rather than into a vaginal space. In one study of men with evacuatory problems, about 17 percent had a rectocele visible on defecography, split roughly evenly between anterior and posterior locations. Constipation with difficult defecation was the dominant complaint in over 80 percent, and a notable 40 percent had previously undergone prostate surgery.19PubMed. Associations of defecography and physiologic findings in male patients with rectocele In men, rectoceles rarely appear in isolation; they typically coexist with other pelvic floor dysfunctions such as pelvic floor dyssynergia or rectal intussusception. Awareness of male rectoceles is low among both patients and clinicians, which likely leads to underdiagnosis.
How to Talk to Your Doctor About It
If you suspect a rectocele, describing your symptoms in specific terms makes a real difference in how quickly you get an appropriate workup. Mention whether you feel a bulge at the vaginal opening, whether it worsens with standing or straining, whether you have difficulty emptying your bowels, and especially whether you use your fingers to support the vaginal wall or perineum during bowel movements. That last detail, splinting, is the single most clinically useful piece of information you can volunteer, because it strongly suggests a mechanically significant rectocele rather than an incidental one.
Asking for a referral to a urogynecologist or a colorectal surgeon with pelvic floor expertise is reasonable if your primary care provider seems uncertain. Because rectoceles so often occur alongside bladder prolapse, uterine descent, or other pelvic floor problems, the specialist who evaluates you should be thinking about all three compartments, not just the posterior wall in isolation. The most common treatment regret is not getting the full picture before either accepting conservative management or going ahead with surgery.