Constipation is common. For many people, it means having fewer bowel movements, passing hard or dry stool, straining, or feeling that the bowel has not completely emptied.

But sometimes constipation can progress beyond ordinary discomfort.

When stool remains in the colon or rectum for too long, it can become progressively drier, harder, and more difficult to pass. In some cases, a large mass of hardened stool becomes stuck and can no longer be evacuated normally.

This is called fecal impaction.

Fecal impaction is more than simply “being very constipated.” It can become a serious medical problem, particularly in older adults, people with limited mobility, and people with certain neurological or medical conditions.

The good news is that fecal impaction often develops in the setting of prolonged or severe constipation. Recognizing and managing constipation earlier may help reduce the risk of it progressing to severe stool retention or impaction.

A Clinical Perspective

As a licensed acupuncturist and Doctor of Traditional Chinese Medicine, I have worked with patients experiencing constipation and difficult bowel movements for more than 20 years.

One experience has stayed with me for many years.

In 2012, I cared for an older patient who was experiencing severe difficulty with bowel evacuation. She was extremely uncomfortable and distressed. Seeing how much she was suffering made a lasting impression on me.

It was a reminder that constipation is not always a minor inconvenience — particularly in older adults. When stool becomes increasingly dry, hard, and difficult to evacuate, the problem can become much more serious.

That experience is one of the reasons I believe bowel care should begin early: pay attention to constipation, support easier and more comfortable bowel movements, avoid unnecessary prolonged straining, and seek appropriate medical care before a problem becomes severe.

A single clinical experience cannot establish medical evidence, and every person's situation is different. The medical information in this article is therefore based on published research and clinical guidance, not on one patient's experience.

What Is Fecal Impaction?

Normally, stool moves through the colon, where water is gradually absorbed before the stool reaches the rectum and is eliminated.

When stool remains in the colon or rectum for an extended period, additional water may be absorbed from it.

The stool can become increasingly:

• Dry
• Hard
• Dense
• Difficult to move
• Difficult or impossible to pass normally

Eventually, a hardened mass of stool may become lodged in the rectum or colon.

This is known as fecal impaction.

Fecal impaction most commonly occurs in the rectum, although retained stool may also accumulate farther up in the colon.

How Can Constipation Progress to Fecal Impaction?

Fecal impaction commonly develops in the setting of chronic or severe constipation.

A person may initially notice that bowel movements are becoming less frequent or more difficult. Stool may become harder, and increasingly more effort may be required to pass it.

If stool is not adequately evacuated, additional stool may continue to accumulate.

A cycle can develop:

Stool remains longer → more water is absorbed → stool becomes harder → evacuation becomes more difficult → more stool accumulates.

Eventually, normal bowel movements may no longer be sufficient to clear the hardened stool.

This is why paying attention to constipation early is important.

Who Is More Likely to Develop Fecal Impaction?

Fecal impaction can occur at different ages, but certain groups are at greater risk.

Older Adults

Fecal impaction is particularly important in older adults.

Aging may be accompanied by reduced mobility, changes in diet and fluid intake, chronic medical conditions, and increased use of medications that contribute to constipation.

Some older adults may also have difficulty recognizing or communicating changes in bowel function.

People With Limited Mobility

Physical activity helps support normal bowel function.

People who spend long periods sitting or lying down — including those who are bedridden or have significant mobility limitations — may be more susceptible to constipation and stool retention.

People Taking Certain Medications

A number of medications may contribute to constipation.

Examples include certain:

• Opioid pain medications
• Anticholinergic medications
• Some antidepressants
• Iron supplements
• Other medications that slow gastrointestinal motility

Medications should not be stopped or changed without consulting the prescribing healthcare professional.

People With Neurological, Cognitive, or Certain Medical Conditions

Conditions affecting the brain, spinal cord, nerves, gastrointestinal function, or a person's ability to recognize and respond to the urge to have a bowel movement may increase the risk of stool retention.

People who depend on caregivers for toileting may also be particularly vulnerable if changes in bowel habits are not recognized early.

What Are the Symptoms of Fecal Impaction?

Symptoms vary depending on the location and severity of the impaction.

Possible symptoms may include:

• Persistent or worsening constipation
• Inability to pass a normal bowel movement
• Repeated straining with little result
• Hard stool
• Abdominal bloating or distension
• Abdominal discomfort or pain
• Rectal discomfort or pressure
• Feeling that stool is present but will not come out
• Loss of appetite
• Nausea
• Small or incomplete bowel movements
• Unexpected fecal leakage or watery stool

That last symptom can be particularly confusing.

Can You Have Diarrhea and Still Be Constipated?

Surprisingly, yes.

A person with fecal impaction may sometimes pass small amounts of liquid or loose stool.

This is sometimes described as overflow diarrhea or paradoxical diarrhea.

Liquid stool may pass around the hardened stool that remains lodged inside the rectum or colon.

This can create a misleading situation.

A person or caregiver may think:

“They have diarrhea, so they can't possibly be constipated.”

But significant retained stool may still be present.

New fecal leakage or watery stool in someone with a history of significant constipation therefore deserves attention, particularly in older adults or people who require assistance with toileting.

Why Can Fecal Impaction Become Serious?

A large mass of hardened stool can place pressure on the rectum, colon, and nearby structures.

Medical literature has documented a range of complications associated with severe fecal impaction, including effects on the intestinal wall, obstruction of the intestinal lumen, and pressure on adjacent structures.

Potential complications can include:

• Rectal irritation or injury
• Anal fissures
• Rectal bleeding
• Bowel obstruction
• Pressure injury or ulceration of the bowel wall
• Urinary problems caused by pressure on nearby structures
• In severe cases, bowel perforation and other serious complications

These severe complications do not occur in everyone with constipation.

However, they demonstrate why persistent or progressively worsening constipation should not simply be ignored.

Can Fecal Impaction Affect the Bladder?

It can in some situations.

The rectum and bladder are located close together within the pelvis.

Significant accumulation of stool can affect nearby structures, and complications involving the urinary tract have been reported in people with severe fecal impaction.

Bowel and bladder function can also be connected through the pelvic floor and nervous system.

This relationship can be especially relevant in older adults and people with neurological or pelvic floor disorders.

Why Simply Straining Harder May Not Work

When people feel stool in the rectum but cannot pass it, their natural reaction is often to push harder.

But once stool has become very hard or impacted, increasing the force of straining may not solve the underlying problem.

Instead, prolonged or forceful straining increases pressure in the abdomen, rectum, anus, and pelvic floor.

More force is not always the answer.

If stool repeatedly feels stuck, bowel movements require prolonged straining, or evacuation remains incomplete despite significant effort, it is important to consider why bowel emptying is difficult rather than simply continuing to push harder.

How Is Fecal Impaction Treated?

Treatment depends on the severity and location of the impaction, its underlying cause, and the person's overall health.

A healthcare professional may evaluate the person's symptoms and medical history and perform a physical examination. In some situations, imaging or other testing may be needed.

Treatment may involve medically appropriate methods to soften, break up, evacuate, or remove the impacted stool.

Depending on the situation, medical treatment may include rectal therapies, bowel evacuation strategies, or manual disimpaction performed by an appropriately trained healthcare professional.

More complicated cases may require additional medical or hospital treatment.

Suspected fecal impaction should not automatically be treated at home without appropriate evaluation, particularly when significant pain, vomiting, bleeding, marked abdominal swelling, or other concerning symptoms are present.

When Should You Seek Medical Attention?

Persistent constipation that becomes progressively worse deserves medical attention, particularly when a person can no longer pass stool normally.

More urgent evaluation may be necessary when constipation or suspected fecal impaction is accompanied by symptoms such as:

• Severe or worsening abdominal pain
• Significant abdominal swelling or distension
• Vomiting
• Fever
• Significant rectal bleeding
• Inability to pass stool or gas
• New confusion or significant weakness
• Severe rectal pain
• Fainting or other serious symptoms

These symptoms should not simply be assumed to be ordinary constipation.

Prevention Begins With Easier, More Regular Bowel Movements

Fecal impaction often develops after stool has remained in the colon or rectum long enough to become increasingly dry, hard, and difficult to pass.

That is why prevention begins much earlier — before stool becomes severely retained or impacted.

The goal is not simply to have a bowel movement at any cost.

The goal is to support bowel movements that are regular, comfortable, and easier to pass without prolonged or excessive straining.

Depending on the individual, healthy bowel habits may include:

• Drinking adequate fluids
• Eating an appropriate amount of dietary fiber
• Staying physically active when possible
• Responding to the natural urge to have a bowel movement
• Maintaining regular bowel habits
• Using a comfortable toilet position
• Avoiding unnecessarily prolonged toilet sitting
• Avoiding repeated or excessive straining
• Paying attention when stool repeatedly becomes hard or difficult to pass
• Reviewing medications that may contribute to constipation with a healthcare professional
• Seeking medical advice when constipation persists or progressively worsens

For older adults, people with limited mobility, and people with neurological or chronic medical conditions, recognizing constipation early may be especially important.

Keeping bowel movements regular and making stool easier to pass may help reduce the risk of constipation progressing to severe stool retention or fecal impaction.

Don't Wait Until Stool Becomes Impacted

A difficult bowel movement is easier to address before stool becomes extremely dry, hard, and stuck.

Pay attention if you regularly:

• Feel the urge to have a bowel movement but cannot easily pass stool
• Need to strain for prolonged periods
• Pass very hard or dry stool
• Frequently feel that your bowel has not completely emptied
• Notice that bowel movements are becoming progressively more difficult

These symptoms do not necessarily mean that fecal impaction is present.

But they may be signs that your bowel routine deserves attention.

Rather than simply pushing harder, consider what may help make bowel movements easier, gentler, and more complete.

Early attention to constipation, healthy bowel habits, and appropriate professional care when needed may help reduce the likelihood that constipation progresses to a more serious problem.

The Goal Is Comfortable and Effective Bowel Care

Constipation is common, but it should not always be dismissed as a minor inconvenience.

There is an important difference between an occasional difficult bowel movement and stool that has become so hard and retained that the body can no longer evacuate it normally.

Recognizing that difference matters.

At EaseFlow®, we believe bowel care should begin before constipation becomes a more serious problem — supporting a gentler, more comfortable bowel routine and reducing unnecessary straining.

The goal is simple:

Keep things moving. Make bowel movements easier. Pay attention when something changes. And know when it is time to seek professional help.

Let’s Flow it Easy!

👉 Explore our complete Constipation Relief Guide for more information on constipation, bowel health, and gentle ways to support easier bowel movements.

References

1. Serrano Falcón B, Barceló López M, Mateos Muñoz B, Álvarez Sánchez Á, Rey E.
Fecal impaction: a systematic review of its medical complications.
BMC Geriatrics. 2016;16:4.
PMID: 26754969.
DOI: 10.1186/s12877-015-0162-5.
PubMed

2. Hussain ZH, Whitehead DA, Lacy BE.
Fecal impaction.
Current Gastroenterology Reports. 2014;16(9):404.
PMID: 25119877.
DOI: 10.1007/s11894-014-0404-2.
PubMed

3. Obokhare I.
Fecal Impaction: A Cause for Concern?
Clinics in Colon and Rectal Surgery. 2012;25(1):53–58.
PMID: 23449376.
DOI: 10.1055/s-0032-1301760.
PubMed

4. Wald A.
Management and prevention of fecal impaction.
Current Gastroenterology Reports. 2008;10(5):499–501.
PMID: 18799126.
DOI: 10.1007/s11894-008-0091-y.
PubMed

5. Alavi K, Thorsen AJ, Fang SH, et al.
The American Society of Colon and Rectal Surgeons Clinical Practice Guidelines for the Evaluation and Management of Chronic Constipation.
Diseases of the Colon & Rectum. 2024;67(10):1244–1257.

PMID: 39250791.
DOI: 10.1097/DCR.0000000000003430.                                                                                   
PubMed    

Medical Disclaimer

This article is provided for general educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. It is not a substitute for professional medical advice, diagnosis, or treatment.

Fecal impaction can require medical treatment. Seek medical care for suspected fecal impaction or persistent or worsening constipation.

Severe or worsening abdominal pain, significant abdominal swelling, vomiting, fever, significant rectal bleeding, inability to pass stool or gas, fainting, or other severe symptoms may require urgent medical evaluation.