Is nephrostomy bag profitable to sell on Amazon United States?

The niche generates $107K/yr across 23 tracked products. 1 of 7 products launched in the last 360 days are still selling. 90-day search growth is +10.0%. Flapen's verdict: Worth a look (58/100).

How competitive is the nephrostomy bag niche?

9 brands and 10 sellers compete. The top 5 products take 53% of clicks and top 5 brands hold 85% of demand.

What do buyers complain about in nephrostomy bag?

Top complaints mined from reviews: Leak-Proof, Size-Overall, Quality-Overall. The return rate is 1.3%.

When does demand for nephrostomy bag peak?

Demand is steady year-round — the busiest month runs 1.4× the quietest.

What does it cost to enter the nephrostomy bag niche?

Listings span $15.36–$38.86; the average listing price is $24.15 (sweet spot $15–$100). The average incumbent carries 66 reviews — the moat a new listing must climb.

Nephrostomy Bag

Worth a look

Shows a thin review moat (66 avg reviews), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Review moat

Incredible65.57

avg incumbent reviews — the moat a new listing must climb

Avg price

Incredible$24.15

avg listing price — sweet spot $15–$100

Price range

Incredible$15.36–$38.86

cheapest to priciest tracked listing — scored on the share inside $15–$100

Returns

Great1.3%

return rate — above 5% kills the launch gate

Conversion

Great7.6%

search→purchase rate — share of searches ending in a sale

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Competition

Good53%

top-5 click share — leaders hold, buyers still browse

Growth

Okay+10.0%

90-day search growth — must beat 0% to launch

Brand share

Okay85%

top-5 brand share — brands hold most of the demand

Market size

Okay$107K

$107K/yr · 58K searches

Signals Low Review Barrier Out of Stock

Is nephrostomy bag profitable on Amazon?

According to Flapen's Amazon United States niche tracking, nephrostomy bag is a $107K/yr Amazon United States market (58K searches/yr). The top 5 brands hold 85% of demand. Verdict: Worth a look — 58/100.

Data updated Jul 28, 2026 · scored weekly · How we score niches

nephrostomy bag market size & sales

Units sold, revenue, conversion and listing quality across the tracked shelf.

Units sold / yr: 3K–4K; avg 100–250/product
Revenue / yr: $72K–$97K; units × avg price
Conversion rate: 7.6%
Avg BSR: #333
Page quality: 0%
Prime: 100%
Sponsored: 96%
Out of stock: 23.9%
Avg brand age: 44 months
Avg seller age: 162 days

Competition: brands, sellers & click share

The top 5 products take 53% of clicks — established leaders, but buyers still shop beyond them.

Brands

9 falling

Sellers

Top-5 brand share

85%

Top 20: 100%

Top-5 click share

53%

Top 20: 97%

Open market

filigan26%
Urosagan25%
lifevv16%
Opstra Yee10%
YOOGUSTO8%
Dedsio6%
Open — no brand owns it (3 brands, 9%)

nephrostomy bag demand & seasonality

Weekly Amazon search volume, last 104 weeks — +10.0% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.4×

Open Trend

Top nephrostomy bag search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

nephrostomy bag29K/yr -1.9%6.8% conv.
nephrostomy drainage bag13K/yr +36.1%5.6% conv.
biliary drainage bag5K/yr +16.7%2.3% conv.
nephrostomy bags4K/yr +1.5%6.4% conv.
uresil 600 ml drainage bag4K/yr -2.2%3.9% conv.
merit drainage depot3K/yr +25.8%4.3% conv.

All search terms

Top nephrostomy bag products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 23 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

3-Pack 600ml Clear Nephrostomy Bags with 1-Pack 3.5cmx110cm Waist Belt

Urosagan$26.414.3★70 rev

Filigan 600ml Nephrostomy Bags Clear Urine Drainage Bag with 24 Silicone Tube Twist Drain Valve (Pack of 5)

filigan$36.314.3★64 rev

Lifevv 600 ML Urine Drainage Bag Drainage w/Clear Bag Nephrostomy Bag with 24 Silicone Tube Twist Drain Valve (1 Pack)

lifevv$17.844.2★314 rev

3-Pack 750ml Nephrostomy Drainage Bag with 24-inch Silicone Tubing

Urosagan$23.004.4★30 rev

800ml Nephrostomy Bags with 24 Inch Silicone Tube Urine Drainage Bag with Twist Drain Valve Pack of 3

filigan$21.834.5★14 rev

Newest

by launch date

2 Pcs Nephrostomy Drainage Bag 600ml with Soft 24-Inch Tube Portable Urine Collection Bag with Twist Valve and Adjustable Leg Straps

Opstra Yee$19.857 rev

2mo ago

750ml Nephrostomy Drainage Bag 3 Pack Drainage Bag with 24-inch Silicone Tubing Twist Drain Valve with 3 Pcs Soft Reusable Elastic Straps

QIHENGPLUS$20.237 rev

3mo ago

4-Pack 1000ml Nephrostomy Bag Disposable Urine Drainage Bag with 47 Silicone Tube T-Tap Drain Valve Anti-Reflux Valve Robert Clamp

filigan$25.898 rev

4mo ago

3 Pack Nephrostomy Bags 600ml with 24 Inch Soft Kink-Resistant Tube Portable Urine Drainage Bags with Twist Valve and Adjustable Leg Straps

YOOGUSTO$26.851 rev

4mo ago

750ml Nephrostomy Bags 3 Pack Urine Drainage Bag Clear Bags with 24 Silicone Tube Twist Drain Valve with 6 Pcs Soft Adjustable Leg Bag Straps for Secure Fit

Dedsio$20.1039 rev

6mo ago

What reviews say buyers love and hate about nephrostomy bag

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall19%

“Good quality bags”

Advertised Vs Actual Product9%

“as advertised”

Value For Money8%

“worth it”

Leak-Proof8%

“Doesn't Leak”

Ease Of Use7%

“Easy to take off”

Strap/String Quality6%

“The straps are comfortable”

Comfort-Overall4%

“Comfortable”

Size-Overall4%

“a decent length”

Adjustability/Rotatability/Reclining3%

“which has an adjustable thread”

Design-Overall3%

“clearly designed for user comfort”

What buyers complain about

Leak-Proof25%

“This one leaked also”

Size-Overall14%

“Tubing is WAY too small”

Quality-Overall14%

“These bags are poorly made”

Jamming/Clogging3%

“Valves clogging in one week or less”

Thickness3%

“These are nice bags not super thick”

Smell3%

“However, these do not last more than 2, maybe 3, days without it starting to smell”

Ease Of Use3%

“It makes it too difficult to urinate quickly”

Strap/String Quality3%

“Only downside is the strap is too big for the little slits”

Durability2%

“Only Lasts a Week”

Value For Money2%

“Goid price”

Top return reasons

Size-Overall44%

Leak-Proof8%

Connectivity-Overall7%

Advertised Vs Actual Product6%

Compatibility-Overall5%

Material Quality4%

Waist Fit4%

Functionality-Overall3%

Ease Of Use2%

Add-Ons/Attachments2%

Common nephrostomy bag questions

Is nephrostomy bag profitable to sell on Amazon United States?: The niche generates $107K/yr across 23 tracked products. 1 of 7 products launched in the last 360 days are still selling. 90-day search growth is +10.0%. Flapen's verdict: Worth a look (58/100).
How competitive is the nephrostomy bag niche?: 9 brands and 10 sellers compete. The top 5 products take 53% of clicks and top 5 brands hold 85% of demand.
What do buyers complain about in nephrostomy bag?: Top complaints mined from reviews: Leak-Proof, Size-Overall, Quality-Overall. The return rate is 1.3%.
When does demand for nephrostomy bag peak?: Demand is steady year-round — the busiest month runs 1.4× the quietest.
What does it cost to enter the nephrostomy bag niche?: Listings span $15.36–$38.86; the average listing price is $24.15 (sweet spot $15–$100). The average incumbent carries 66 reviews — the moat a new listing must climb.