Faecal incontinence can feel frightening, frustrating, and deeply personal. It may involve leaking stool, not making it to the toilet in time, soiling underwear, or struggling to control wind. For some people, it happens occasionally. For others, it becomes a regular problem that affects work, sleep, travel, exercise, relationships, and confidence.
If this is happening to you, it is important to know two things. First, you are not alone. Second, faecal incontinence is not something you simply have to put up with.
Faecal incontinence is a bowel control problem. It can happen for many reasons, including muscle weakness, nerve injury, constipation, diarrhoea, pelvic floor problems, previous surgery, childbirth injury, or changes linked with ageing. Because there are so many possible causes, getting the right diagnosis matters.
Services that provide anorectal physiology testing services can help identify what is happening with the muscles, nerves, and sensation involved in bowel control. From there, anorectal dysfunction specialists and specialist colorectal surgeons can recommend the most suitable next steps.
What Is Faecal Incontinence?
Faecal incontinence means you cannot always control when stool passes from the bowel. This may include small stains in underwear, leakage after going to the toilet, sudden accidents, or complete loss of bowel control.
Some people also experience urgency, where they suddenly need to rush to the toilet and may not get there in time. Others notice they cannot tell the difference between wind and stool, or they do not realise leakage has happened until later.
Continence Health Australia reports that 1 in 4 adults in Australia experience incontinence, which includes bladder and bowel control problems. That number shows how common continence issues are, even though many people still feel embarrassed talking about them.
Common Symptoms to Watch For
Faecal incontinence does not look the same for everyone. You may notice:
- Leaking stool before reaching the toilet
- Staining or soiling in underwear
- Leakage after opening your bowels
- Difficulty controlling wind
- Sudden urgency to pass stool
- Not feeling when stool is about to pass
- A sense of incomplete emptying
- Needing to wipe many times after going
- Constipation with occasional leakage
- Loose stools that are difficult to hold
If these symptoms happen repeatedly, it is worth seeking advice. Even mild leakage can be a sign that the bowel control system is not working as well as it should.
Cause 1: Weak Anal Sphincter Muscles
The anal sphincters are the muscles that help keep the anus closed until you are ready to go to the toilet. If these muscles are weak or damaged, it can become harder to hold stool or wind.
This weakness can happen after childbirth, anal surgery, trauma, ageing, or long-term straining. Sometimes the damage is obvious. Other times, a person may not realise there has been an injury until symptoms appear years later.
For example, some women develop bowel control problems long after having children. This can happen if the muscles or nerves were stretched or injured during birth.
Anorectal physiology testing services can measure how strong these muscles are when resting and squeezing. This helps doctors understand whether muscle weakness is contributing to leakage.
Cause 2: Nerve Damage
Bowel control depends on good communication between the bowel, nerves, brain, and pelvic floor muscles. Nerves help you sense when the rectum is filling and tell the muscles when to hold on or relax.
Nerve damage can reduce sensation or weaken control. This may happen after childbirth, pelvic surgery, spinal problems, diabetes, stroke, neurological conditions, or repeated straining over many years.
When nerve signals are affected, you may not feel stool in the rectum until it is too late. Some people have leakage without warning. Others feel urgency but cannot hold on long enough.
Diagnostic testing can help assess whether sensation or nerve function may be part of the problem.
Cause 3: Chronic Constipation
Constipation may sound like the opposite of faecal incontinence, but it is one of the common causes.
When stool builds up in the bowel, it can become hard and difficult to pass. Softer or watery stool may then leak around the blockage. This is sometimes mistaken for diarrhoea, but the real issue may be constipation.
Chronic constipation can also stretch the rectum over time, reducing sensation and making it harder to know when the bowel is full. Repeated straining may weaken the pelvic floor and affect the muscles involved in bowel control.
Signs constipation may be contributing include hard stools, straining, bloating, long toilet visits, feeling blocked, or feeling like the bowel has not fully emptied.
Cause 4: Diarrhoea or Loose Stools
Loose stool is much harder to hold than formed stool. Even people with normal muscle strength may struggle with urgency or leakage when stools are watery or frequent.
Diarrhoea can be caused by infections, food intolerances, irritable bowel syndrome, inflammatory bowel disease, medication side effects, gallbladder surgery, or other digestive conditions.
When loose stools happen often, it is important to investigate the cause rather than simply relying on pads or avoiding food. Managing stool consistency can make a major difference to bowel control.
Cause 5: Pelvic Floor Dysfunction
The pelvic floor is a group of muscles that supports the bladder, bowel, and pelvic organs. These muscles need to contract and relax at the right time.
If the pelvic floor is weak, it may not provide enough support for bowel control. If it is too tight or poorly coordinated, it may stop the bowel from emptying properly. This can lead to constipation, incomplete emptying, urgency, or leakage after going to the toilet.
Pelvic floor dysfunction is common after childbirth, pelvic surgery, chronic straining, and some pain conditions. However, it can affect men and women.
Anorectal dysfunction specialists can help determine whether the issue is weakness, poor coordination, reduced sensation, or a mix of factors.
Cause 6: Rectal Prolapse or Structural Changes
Rectal prolapse happens when part of the rectum drops down or bulges through the anus. Even a smaller internal prolapse can interfere with normal emptying and control.
Other structural problems, such as haemorrhoids, previous surgery changes, or scarring, may also affect continence. Some people feel a bulge, pressure, mucus leakage, or difficulty fully emptying.
Specialist colorectal surgeons may recommend further assessment if a structural problem is suspected. Treatment depends on the cause, severity, and overall health of the patient.
Cause 7: Ageing and Other Health Conditions
Faecal incontinence can become more common with age, but it should not be dismissed as a normal part of getting older. Ageing may contribute to reduced muscle strength, slower bowel movement, changes in sensation, or increased constipation.
Other health conditions can also play a role. These include diabetes, dementia, stroke, multiple sclerosis, Parkinson’s disease, spinal injury, inflammatory bowel disease, and mobility issues.
The Royal Australian College of General Practitioners notes that Australian and New Zealand data indicate faecal incontinence affects about 12–13% of older adults and up to 50% of people in residential aged care.
This is why bowel control problems should be assessed properly, especially when they affect independence, hygiene, skin health, or quality of life.
How Is Faecal Incontinence Diagnosed?
Diagnosis usually begins with a conversation about your symptoms. Your doctor may ask when the leakage happens, how often it occurs, what your stool is like, whether you have urgency, whether you are constipated, and whether you have had childbirth injuries, surgery, or other health conditions.
You may also be asked about medications, diet, fluid intake, and toilet habits.
Depending on your symptoms, you may be referred for anorectal physiology testing services. These tests can assess how the anus and rectum are working. They may measure muscle pressure, squeezing strength, sensation, reflexes, and coordination during simulated emptying.
The goal is to identify the reason for the leakage, not just the symptom itself.
What Can Be Done?
Treatment depends on the cause. There is no single treatment that suits everyone, which is why proper diagnosis is so valuable.
Options may include:
- Changes to diet, fibre, and fluid intake
- Medication to improve stool consistency
- Constipation treatment
- Pelvic floor physiotherapy
- Bowel habit training
- Biofeedback therapy
- Reviewing medications that may worsen diarrhoea or constipation
- Managing underlying bowel conditions
- Surgical treatment in selected cases
- Specialist care from colorectal surgeons when needed
For some people, improving stool consistency and toilet habits can reduce symptoms. For others, treatment may need to focus on muscle strength, nerve-related changes, pelvic floor coordination, or structural issues.
When Should You Seek Help?
You should seek medical advice if bowel leakage happens more than once, is getting worse, affects your confidence, or changes how you live day to day. You should also seek help if you have constipation with leakage, sudden urgency, loss of sensation, or symptoms after childbirth or surgery.
See a doctor promptly if you notice bleeding, unexplained weight loss, severe pain, black stools, a sudden major change in bowel habits, or leakage that begins suddenly without a clear reason.
Faecal incontinence can feel isolating, but it is a recognised medical condition with diagnostic and treatment options. Speaking to your GP is often the first step. From there, services such as Colorectal Diagnostics, anorectal dysfunction specialists, and specialist colorectal surgeons can help investigate the cause through anorectal physiology testing services and guide you towards the right care.