When to Start Diapers for a Senior Dog — Toileting Care Steps, and Monthly Cost

This page contains affiliate links (PR).

Care needs vary by size: see large dogs (roughly 25kg+) or small dogs and cats

A towel left on the floor is wet again by morning. Some mornings you can't tell whether they didn't make it in time, or it happened while they were asleep. Toileting issues affect daily life during caregiving more than almost anything else — more laundry, lingering smells, and waking up repeatedly at night.

Here we go through how to tell which stage you're at, choosing between pee pads and diapers, and what it actually costs. If you're worried about your pet's condition, talk to a vet before trying anything written here.

① First, work out which stage you're at

"Accidents have increased" can mean three different things, and the right response depends on which one it is.

1. Not making it to the toilet in time — they know where it is, but don't get there before it happens
2. Accidents in the sleeping spot — it happens while they're lying down, without them noticing
3. Can't stand unassisted — they can't hold a position, and need help staying supported

At stage 1, changing the toilet's location and the flooring can still reduce accidents. Once stage 2 starts, that's often when there's still time to begin thinking about diapers.

② Before diapers, widen the area pee pads can cover

Diapers aren't a last resort, but there's a lower-effort step first. Try in this order.

1. Move the toilet closer to the sleeping spot (a shorter distance makes it easier to get there in time)
2. Change the flooring between the sleeping spot and the toilet to something non-slip
3. At night only, widen the area of pee pads around the sleeping spot

There's a cost reason for this order too. The median price is about ¥57.6 per diaper versus about ¥12.4 per thick pee pad — about 4.6x more. For as long as pee pads are enough, they're easier on both your budget and your workload.▶ Browse thick pee pads on Rakuten

③ Choosing pee pads — the "thick" label isn't reliable

You bought what was labeled a thick pad, but there's a wet footprint left behind anyway. That's the single most common complaint in low-rated pee pad reviews.

• Labeled "thick" but feels thin68.3%
• Doesn't absorb / leaks40.5%
• Quality dropped / price went up compared to before23.9%

We classified 284 one- and two-star reviews across 5 pee pad products. Beyond these: smaller than expected 13.7%, smell doesn't go away 13.4%, tears easily 9.9%. A single review can mention more than one issue, so the totals add up to more than 100%.

The second complaint, "doesn't absorb," traces back to the same root cause. It's thin, so it leaks.Most low ratings come down to one single problem.

In other words, the mistake buyers make isn't "picking a bad product" — it's trusting the word "thick."There's no standardized definition of "thick," so the actual amount of material varies widely even between products labeled the same way.

Two practical pointers: a very low price per sheet usually means it's thin. And if you want to keep an eye on things day to day, a white pad is the better choice. One review specifically mentioned that a dark-colored pad made it impossible to see the urine color and check on health.

④ Choosing diapers — measure first, fastening is where it gets tricky

There are two separate products: the diaper itself, and the cover or belt that holds it in place. Low ratings cluster around the latter.

Only 1.1% of reviews of the diapers themselves were 1- or 2-star. For covers and belts it was 2.4% — more than double. And of the low-rated diaper reviews, 10 out of 11 were about sizing.The diaper itself rarely disappoints, whichever one you choose.

We read 1,016 reviews of the diapers themselves, and 4,020 reviews of covers, belts, and care wear.

So the first step isn't comparing products. It's measuring the waist. Choosing by weight leads to a poor fit — two dogs at the same 3kg can have very different builds.▶ Browse dog care diapers on Rakuten

Now, what's actually going wrong on the fastening side?

• Doesn't fit53.7%
• Shifts out of place / falls off29.5%
• Dog takes it off / chews through it27.4%

We classified 95 one- and two-star reviews of covers, belts, and care wear. Beyond these: tape too weak 20.0%, dog won't tolerate wearing it 16.8%, buckle or clip breaks 12.6%.

The third issue is a little different from a product defect — it's the dog resisting it. Fastening it more tightly isn't the only answer. Another option is planning around it coming off, by widening the pee-pad area near the sleeping spot.

⑤ Protecting the skin around the rear

The biggest concern while using diapers is moisture. Staying damp for long stretches puts stress on the skin.

• Change it when wet — checking rather than going by a fixed schedule is more reliable
• Let the area dry before putting the next one on
• Don't leave it on constantly — build in time without a diaper

※If the skin is red, sore, or the smell changes, don't treat it yourself — talk to a vet.

⑥ Odor and waste

One thing that has more impact than expected in toileting care is the trash. In summer especially, storing it until the next collection day gets unpleasant fast.

• Wrap used items small and put them in a sealed container
• Treat the smell in the room and the smell in the trash as two separate problems
• Some deodorizers mask the smell, others break it down. Unscented options tend to be easier to live with during caregiving

▶ Browse pet odor sprays on Rakuten

⑦ What it costs per month

Dividing real Rakuten prices by the count per pack gives a median of ¥57.6 per diaper and ¥12.4 per thick pee pad. At those unit prices, here's what a month looks like at each of the three usage levels from section ①.

※How many are used per day varies a lot by the individual pet's condition. The table above is a projection based on "if you used X per day" — not a measurement of actual usage. The unit prices are based on real market prices.

⑧ For cats

Cats call for a different approach than dogs. Rather than diapers, changing the litter box itself is often more effective first.

• Switch to a low-sided litter box (stepping over a high side can become uncomfortable)
• Don't switch the litter itself — sticking with what they're used to reduces accidents
• Add more litter boxes to shorten the distance they need to travel

Ongoing accidents outside the litter box can also point to a health change. If it starts suddenly, it's worth getting checked.

⑨ Your own back, and the nights

Toileting care is hard on your back — crouching down over and over throughout the day adds up.

• Raise the sleeping area slightly to cut down on how often you have to crouch
• Keep supplies in one spot so you're not walking back and forth to fetch them
• Let go at night — lay down a wide area before bed and clean up in the morning

A night you couldn't get up to change them doesn't have to count as a failure. Perfect care matters less than you not collapsing.

⑩ Signs it's time to see a vet

See a vet without waiting if you notice any of the following.

• Blood in the urine
• No urine, or a sudden drop in amount
• Sudden-onset incontinence
• Going to the toilet often but only passing a little each time
• Redness or soreness around the rear

※This page is a general introduction to care ideas. For diagnosis or treatment, please consult a vet.

Frequently asked questions

How the numbers on this page were gathered

Unit prices were calculated by dividing the listed price of each Rakuten Ichiba product by the count per pack stated in the product name (23 diaper products, 35 pee pad products). Because prices move with sales and coupons, we re-check them roughly every three months.

The low-rating breakdown comes from reading every review on Rakuten's "everyone's reviews" from page one to the end, and classifying every 1- and 2-star review (13 products, 9,811 reviews total, 390 of them 1- or 2-star). We haven't reproduced the review text itself — only the counts and categories.

※For products with more than 3,000 reviews, Rakuten's review page display limit means we couldn't read through to every 1- and 2-star review. This survey is therefore limited to products with 3,000 or fewer total reviews — the most popular large-volume products aren't included.