When Bladder and Bowel Control Slip Away
SaveThe question behind this one is usually not academic. Something has changed at home, and a family is trying to work out whether it means the disease has moved. This page places bladder and bowel changes on the two staging scales clinicians actually use, explains why the mechanics of toileting fail before continence does, and covers what the change tends to alter about care.
Last updated: July 2026
What stage of dementia is incontinence?
Stage 6 — the moderate-to-severe part of the disease, and not the last stage. The FAST scale divides functional decline in Alzheimer's dementia into seven major stages, with stages 6 and 7 broken into lettered substages 1Ref 1Reisberg B (1988).Functional Assessment Staging (FAST).The FAST scale's structure and content: seven major stages of functional decline in Alzheimer's dementia, with lettered substages within stages 6 and 7; the placement of loss of urinary control and then bowel control within the stage 6 substages, after the mechanics of toileting; stage 4 as the complex-task substage; the stage 7 substages covering narrowing speech and loss of ambulation; and the scale's use in dementia hospice eligibility via its stage 7 markers.. Stage 6 works through dressing, then bathing, then the mechanics of toileting, and only then reaches the loss of urinary control at 6d and the loss of bowel control at 6e 1Ref 1Reisberg B (1988).Functional Assessment Staging (FAST).The FAST scale's structure and content: seven major stages of functional decline in Alzheimer's dementia, with lettered substages within stages 6 and 7; the placement of loss of urinary control and then bowel control within the stage 6 substages, after the mechanics of toileting; stage 4 as the complex-task substage; the stage 7 substages covering narrowing speech and loss of ambulation; and the scale's use in dementia hospice eligibility via its stage 7 markers..
FAST stands for Functional Assessment Staging — a scale that stages dementia by what a person can still do, rather than by a test score.
The federal description of Alzheimer's runs on a coarser grid and says the same thing in different words: the disease moves through preclinical, mild, moderate, and severe stages, with the moderate stage bringing greater supervision needs and the severe stage bringing full dependence on others for care 2Ref 2National Institute on Aging (NIH) (2024).What Are the Signs of Alzheimer's Disease?.That Alzheimer's typically progresses through preclinical, mild, moderate, and severe stages, that the moderate stage brings greater supervision needs, and that the severe stage brings full dependence on others for care.. Continence sits inside that moderate-to-severe transition.
Stage 4 on the same scale sits a long way back from here, at complex tasks — the planning and money handling that tend to go first 1Ref 1Reisberg B (1988).Functional Assessment Staging (FAST).The FAST scale's structure and content: seven major stages of functional decline in Alzheimer's dementia, with lettered substages within stages 6 and 7; the placement of loss of urinary control and then bowel control within the stage 6 substages, after the mechanics of toileting; stage 4 as the complex-task substage; the stage 7 substages covering narrowing speech and loss of ambulation; and the scale's use in dementia hospice eligibility via its stage 7 markers.. Families who find themselves reading about fast stage 4 and about continence in the same week are usually looking at two different people's diseases, or at a single disease across several years.
Why the bathroom stops working before the bladder does
The substage immediately before incontinence on the FAST scale is the mechanics of toileting 1Ref 1Reisberg B (1988).Functional Assessment Staging (FAST).The FAST scale's structure and content: seven major stages of functional decline in Alzheimer's dementia, with lettered substages within stages 6 and 7; the placement of loss of urinary control and then bowel control within the stage 6 substages, after the mechanics of toileting; stage 4 as the complex-task substage; the stage 7 substages covering narrowing speech and loss of ambulation; and the scale's use in dementia hospice eligibility via its stage 7 markers.. That ordering carries a practical message that gets missed: the first accidents in dementia are often not a bladder problem at all. They are a wayfinding problem, a clothing problem, a sequencing problem, or a not-recognising-the-door-in-the-dark problem.
On the FAST scale, losing the mechanics of toileting comes before losing continence 1Ref 1Reisberg B (1988).Functional Assessment Staging (FAST).The FAST scale's structure and content: seven major stages of functional decline in Alzheimer's dementia, with lettered substages within stages 6 and 7; the placement of loss of urinary control and then bowel control within the stage 6 substages, after the mechanics of toileting; stage 4 as the complex-task substage; the stage 7 substages covering narrowing speech and loss of ambulation; and the scale's use in dementia hospice eligibility via its stage 7 markers. — which means the earliest accidents may have a fixable cause.
What many families change first has nothing to do with medicine:
- The bathroom door stays open, with the light on, so the room announces itself.
- A toilet seat in a colour that contrasts with the floor and the bowl becomes findable again.
- Trousers with an elastic waist replace buttons and belts that now take too long.
- Trips get offered on a rhythm rather than waited for, because the request may no longer arrive in words.
- The path from bed to bathroom gets cleared of rugs and furniture and given a night light.
None of that reverses fast stage 6. It does buy back the months in which the problem is still logistics rather than physiology, and those months are worth having.
When new incontinence is not the dementia
Staging answers a question about pattern. It does not answer a question about cause, and the two get confused most often when the change arrives quickly. Someone who was continent last month and is not this week has had a change that the slow arc of a degenerative disease does not, by itself, account for. That is a conversation to open with a clinician rather than a stage to accept quietly.
Asking whether something else is going on is not denial about the diagnosis. It is ordinary medicine.
Questions worth putting in front of the clinician, in roughly this order:
- What has changed on the medication list in the past few weeks?
- Could there be an infection, and how would we know without guessing?
- Is constipation part of the picture?
- Has walking, balance, or vision changed, so that the distance to the bathroom is now the real obstacle?
- Is anything hurting, in someone who may no longer report pain in sentences?
The answer may turn out to be the dementia after all. Asking costs one appointment; not asking can cost a treatable problem several months of being missed.
The two staging scales, and why they differ on detail
Two related instruments are in circulation, and families often meet both without being told they are different. The Global Deterioration Scale, published in 1982, describes primary degenerative dementia across seven stages 3Ref 3Reisberg B, Ferris SH, de Leon MJ, Crook T (1982).The Global Deterioration Scale for assessment of primary degenerative dementia.The existence, origin, and seven-stage structure of the Global Deterioration Scale for staging primary degenerative dementia, as the companion staging framework families meet alongside FAST.. The FAST scale shares that seven-stage spine and adds the lettered substages inside stages 6 and 7 1Ref 1Reisberg B (1988).Functional Assessment Staging (FAST).The FAST scale's structure and content: seven major stages of functional decline in Alzheimer's dementia, with lettered substages within stages 6 and 7; the placement of loss of urinary control and then bowel control within the stage 6 substages, after the mechanics of toileting; stage 4 as the complex-task substage; the stage 7 substages covering narrowing speech and loss of ambulation; and the scale's use in dementia hospice eligibility via its stage 7 markers., which is what makes it precise enough to describe a change in toileting rather than a change in a whole year.
That difference explains a common confusion. A clinic that works in Reisberg staging may say stage 6 and mean a broad band of the disease, while a hospice assessment using the substages may say 6d or 7a and mean something quite specific. Both are talking about the same person.
Dementia staging is a description of function, not a measurement taken from the brain. Two experienced clinicians can land half a step apart on the same afternoon, particularly when the day-to-day detail comes from different people. A stage is best read as a band, and as a shorthand for a conversation rather than a replacement for one.
What tends to change about care once continence goes
Continence is one of the hinges in dementia care, because it changes the arithmetic of a night. Help with toileting cannot be scheduled the way meals can, and it usually cannot be given from another room. Federal guidance marks the moderate stage as the point of greater supervision needs, and the severe stage as full dependence on others for care 2Ref 2National Institute on Aging (NIH) (2024).What Are the Signs of Alzheimer's Disease?.That Alzheimer's typically progresses through preclinical, mild, moderate, and severe stages, that the moderate stage brings greater supervision needs, and that the severe stage brings full dependence on others for care.. Households often meet the practical version of that sentence before they meet the words.
An estimated 6.9 million Americans age 65 and older were living with Alzheimer's dementia in 2024 4Ref 4Alzheimer's Association (2024).2024 Alzheimer's disease facts and figures.The estimate that 6.9 million Americans age 65 and older were living with Alzheimer's dementia in 2024, and that the report also accounts for the unpaid caregiving hours behind that figure..
The same report counts the unpaid caregiving behind that number, most of it done by families 4Ref 4Alzheimer's Association (2024).2024 Alzheimer's disease facts and figures.The estimate that 6.9 million Americans age 65 and older were living with Alzheimer's dementia in 2024, and that the report also accounts for the unpaid caregiving hours behind that figure.. It is worth knowing, at the point where a night has stopped being a night, that this is an enormously common place to be rather than a private failure.
Mobility usually becomes the next question. The FAST substages of stage 7 track the narrowing of speech and then the loss of walking 1Ref 1Reisberg B (1988).Functional Assessment Staging (FAST).The FAST scale's structure and content: seven major stages of functional decline in Alzheimer's dementia, with lettered substages within stages 6 and 7; the placement of loss of urinary control and then bowel control within the stage 6 substages, after the mechanics of toileting; stage 4 as the complex-task substage; the stage 7 substages covering narrowing speech and loss of ambulation; and the scale's use in dementia hospice eligibility via its stage 7 markers., so dementia mobility decline is the chapter that tends to follow this one — a useful thing to know before a bathroom two floors from a bedroom becomes the binding constraint.
Where incontinence sits in the memory-care and hospice conversations
Incontinence on its own does not make someone hospice-eligible. The FAST scale is the tool used in dementia hospice eligibility, and the markers that carry weight there are the stage 7 ones, not the stage 6 substages where continence is lost 1Ref 1Reisberg B (1988).Functional Assessment Staging (FAST).The FAST scale's structure and content: seven major stages of functional decline in Alzheimer's dementia, with lettered substages within stages 6 and 7; the placement of loss of urinary control and then bowel control within the stage 6 substages, after the mechanics of toileting; stage 4 as the complex-task substage; the stage 7 substages covering narrowing speech and loss of ambulation; and the scale's use in dementia hospice eligibility via its stage 7 markers.. A family told that a parent qualifies because of incontinence is being told something the scale does not say, and it is fair to ask which specific findings the assessment relied on.
Memory care criteria are a different matter and are set by each setting and each state rather than by the FAST scale. Continence support is one of the services most likely to sit in a separate fee tier, so the question to ask about any setting is not whether it provides the help but how the help is priced, staffed overnight, and reassessed when needs change.
The method for checking a setting is public. Medicare publishes a visit checklist of questions to ask and things to observe on a tour, covering rooms, activities, safety, staffing, and dementia care specifically 5Ref 5Centers for Medicare & Medicaid Services (2022).Questions to Ask When You Visit a Nursing Home (Nursing home checklist).That Medicare publishes an official visit checklist of questions to ask and items to observe on a tour, covering rooms, activities, safety, staff, and dementia care.. Reading it before the visit converts a sales tour into an inspection, and it works better than any list of names — because the checklist keeps working next year, when the staffing has turned over.
What makes this easier to live with
Federal caregiver guidance is unusually direct on this point: dementia caregiving is demanding, it produces discouragement, frustration, and anger in people who are doing it well, and self-care plus outside help — family, respite, home health, support groups — reduces the burden 6Ref 6National Institute on Aging (NIH) (2023).Alzheimer's Caregiving: Caring for Yourself.Federal guidance that dementia caregiving is demanding and can produce discouragement, frustration, and anger, and that self-care and outside help — family, respite, home health, and support groups — reduce caregiver burden.. That is written down in government guidance precisely because so many caregivers assume the strain is a personal shortcoming.
A few things help in the room. Keeping the language neutral, because shame does not improve continence and does reliably make someone hide the evidence. Handling the laundry without commentary. Treating the accident as a fact of the day rather than an event. The person is not doing this on purpose, and in the moderate stage they may be unable to explain what went wrong even while knowing that something did.
A few things help outside it. Bringing a written record to the appointment — times, drinks, medication changes, what was happening just before — turns a vague report into something a clinician can work with. Asking whether a nurse or occupational therapist can look at the practical side is also reasonable; the room, the clothing, and the route are their trade, not an afterthought.
Common questions
Related
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FAST Stage 6: When Assisted Living Isn't EnoughSenior living & memory care
Walking Through the Six-A to Six-E Substages
Say it back
How would you explain this to someone you love?
Two or three sentences, just as you’d say it. Gale reflects back what you focused on — a mirror, not a quiz.
When a change in continence needs a same-day call
- —Incontinence that begins abruptly over a day or two, especially with fever, shaking chills, or confusion clearly beyond the person's usual baseline
- —Blood in the urine, or urine that has turned cloudy and strong-smelling alongside pain or discomfort on passing it
- —No urine passed at all for many hours, with a hard, swollen lower abdomen or evident distress from a full bladder
- —New leg weakness, numbness in the saddle area between the legs, or loss of bowel control arriving together with back pain
New leg weakness, numbness between the legs, and loss of bowel control appearing together is an emergency-department visit the same day, not a wait for the next appointment. Call 911 if the person cannot be roused to normal alertness, or has become confused within a matter of hours.
This page explains how dementia staging scales describe changes in continence. It is not a diagnosis, not a substitute for the clinician who knows the person, and not a basis for changing any treatment.
References
- 1.Reisberg B (1988). Functional Assessment Staging (FAST). Psychopharmacology Bulletin. PMID 3249767The FAST scale's structure and content: seven major stages of functional decline in Alzheimer's dementia, with lettered substages within stages 6 and 7; the placement of loss of urinary control and then bowel control within the stage 6 substages, after the mechanics of toileting; stage 4 as the complex-task substage; the stage 7 substages covering narrowing speech and loss of ambulation; and the scale's use in dementia hospice eligibility via its stage 7 markers.
- 2.National Institute on Aging (NIH) (2024). What Are the Signs of Alzheimer's Disease?. National Institute on Aging (NIH). link ✓That Alzheimer's typically progresses through preclinical, mild, moderate, and severe stages, that the moderate stage brings greater supervision needs, and that the severe stage brings full dependence on others for care.
- 3.Reisberg B, Ferris SH, de Leon MJ, Crook T (1982). The Global Deterioration Scale for assessment of primary degenerative dementia. American Journal of Psychiatry. doi:10.1176/ajp.139.9.1136 ✓The existence, origin, and seven-stage structure of the Global Deterioration Scale for staging primary degenerative dementia, as the companion staging framework families meet alongside FAST.
- 4.Alzheimer's Association (2024). 2024 Alzheimer's disease facts and figures. Alzheimer's & Dementia (journal of the Alzheimer's Association). doi:10.1002/alz.13809 ✓The estimate that 6.9 million Americans age 65 and older were living with Alzheimer's dementia in 2024, and that the report also accounts for the unpaid caregiving hours behind that figure.
- 5.Centers for Medicare & Medicaid Services (2022). Questions to Ask When You Visit a Nursing Home (Nursing home checklist). Medicare.gov / CMS Publication 12130. link ✓That Medicare publishes an official visit checklist of questions to ask and items to observe on a tour, covering rooms, activities, safety, staff, and dementia care.
- 6.National Institute on Aging (NIH) (2023). Alzheimer's Caregiving: Caring for Yourself. National Institute on Aging (NIH). link ✓Federal guidance that dementia caregiving is demanding and can produce discouragement, frustration, and anger, and that self-care and outside help — family, respite, home health, and support groups — reduce caregiver burden.
6 sources, numbered by first appearance. General health information, not medical advice. AI-assisted editorial content — citations link their sources. Editorial policy