One Piece Vs Two Piece Stoma Bag: What’S The Difference?

2025-11-27
Author: Zodelo Ostomy

One piece vs two piece stoma bag,which is better? Whether it is the one piece stoma bag or the two piece stoma bag, they can effectively collect excrement and help stoma patients return to a normal life. Therefore, it is necessary for all stoma patients to understand the difference between one piece vs two piece stoma bag. Only in this way can stoma care be done more scientifically and reasonably.

Zodelo is well aware that the stoma bag is of vital importance to stoma patients. Therefore, based on the customer experience, we are committed to developing the highest quality and safest stoma bag. Let users enjoy a more comfortable and reassuring life. Meanwhile, Zodelo also provides you with the most comprehensive and detailed information on ostomy care. This article will provide you with a detailed analysis of one piece vs two piece stoma bag.

One piece stoma bag

1. What is one piece stoma bag?

To better understand one piece vs two piece stoma bag, it is necessary to first understand what is one piece stoma bag. The skin barrier and bag of the integrated stoma bag are of an integrated structure. Replace and discard as a whole when in use. Common types of one piece stoma bags include drainable one piece stoma bags,closed-end one piece stoma bags, and one piece stoma bags with activated carbon filters, etc.

2. Advantage of one piece stoma bag

Simple operation:No need to connect the baseplate and the bag, making it easier for beginners or patients with less flexible hands to operate.
Thinner, lighter and more invisible: suitable for users who pursue a concealed appearance, and it fits the body better.
Lower leakage risk: There is no additional gap at the connection between the chassis and the bag, resulting in better overall sealing performance.
Relatively low cost:Due to its simple structure, the comprehensive usage cost is usually lower than that of the two-piece stoma bag

3. Disadvantage of one piece stoma bag

The chassis should be removed each time it is replaced:If the skin barrier is replaced frequently, it will cause damage and irritation to the skin around the stoma. Long-term use may lead to skin problems such as erosion, exudation, rashes and allergies.
Not suitable for patients with frequent or large amounts of excretion:Frequent tearing of the undercarriage doubles the burden on the skin.
Low flexibility: It cannot be replaced with different bag types like the two-piece type, such as large-capacity bags for night use.

4. Suitable for:

New stoma patients: Simple structure, easy operation to learn, and low learning cost.
For the elderly or those with limited mobility: Reduce operation steps and lower error rates.
Those with small or regular bowel movements: such as partial terminal ileal stoma and sigmoidostoma.
People who seek concealment and lightness: for instance, those who frequently socialize and go out, and those who pursue fashionable clothing.

Two Piece Stoma Bag

1. What is two piece stoma bag?

To better understand one piece vs two piece stoma bag, it is necessary to first understand what is two piece stoma bag. The Two piece stoma bag consists of two parts: the wafer and the bag body. The wafer and the bag body are connected through flange. The connection mode is click or a flexible adhesive coupling. The Wafer can be attached to the skin around the stoma and remain there for 3 to 5 days. Just replace the bag body.

2. Advantage of two piece stoma bag

Skin-friendly: Skin barrier does not need to be removed frequently and is very friendly to people with sensitive skin. It can significantly reduce the risk of skin damage or allergic inflammation around the stoma.
High flexibility:Different stoma bag types can be freely switched according to different times and usage scenarios: Use ordinary specification bag bodies during the day. Change to a larger capacity bag at night. In the early postoperative period, when observing the stoma, a transparent bag should be used.
Suitable for people with high excretion volume or frequent excretion: Frequent bag changes will not damage or irritate the skin, nor will it affect the adhesion of the skin baerrier.
More precise adjustment of skin barrier shape: The two piece stoma bag skin barrier can adjust its shape more precisely, fit the skin better and reduce the possibility of leakage.

3. Disadvantage of two piece stoma bag

Overall, it is relatively heavy: especially the snap-on type, which is quite heavy.
The operation is rather complicated: novices need to learn how to align the snap, how to exhaust air and how to ensure good sealing.
The cost is higher than that of the single-piece type: it includes two parts, the base and the bag.
Leakage may occur at the connection points: or the connection points may not be correctly inserted, or the chassis may age, etc.

4. Suitable for:

Patients with large excretion volume: such as Ileostomy patients, High-output stoma patients.

Patients with sensitive skin: The skin barrier is pulled relatively less frequently and is friendly to the skin.

Patients who need to frequently change stoma bags: such as those with excessive gas, frequent bowel movements, and active physical activity.

Long-term ostomy patients: In the long run, it is more economical and imposes less burden on the skin.

For those with irregular stomas: two piece stoma bag skin barrier can adjust the shape more precisely, fit the skin better and reduce the possibility of leakage.

Similarities Between one piece vs two piece stoma bag

Although one piece vs two piece stoma bag, the two have different structures. However, as the basic functions of the stoma care system, they are consistent. The main similarities are as follows:

1. The functions are the same

All are used to collect the excrement discharged from the stoma to maintain hygiene and health. Protect the skin at the same time and improve the quality of life. Both are applicable to Ileostomy, Colostomy and Urostomy.

2. Both include skin protection systems

Whether it is one piece or two piece stoma bag, they all contain: medical Hydrocolloid skin protective layer. Used for sealing, reducing leakage and minimizing skin irritation.

3. All of them are equipped with leak-proof and sealing technologies

Leak-proof adhesive rubber ring, impermeable protective layer, activated carbon filter device, drain outlet (for drainable stoma bag). All of them have the functions of leak-proof, odor-proof and maintaining comfort.

4. Both Drainable system and Closed system are available for selection

Adapt to different excrement characteristics

Drainable stoma bag system: Ileostomy, high flow rate.

Closed stoma bag system: Sigmoidostomy, formed stool.

5. The material is the same as the medical-grade standard

Common materials include: medical PE/EVA, EVOH,PVDC multi-layer film structure, and soft-touch backsheet. Activated carbon filtration system. All comply with medical device standards such as CE, FDA, and ISO.

6. All need to be used in combination with ostomy accessories products:

For example: Ostomy Skin Care Powder
Reinforced Ostomy Adhesive Patch:
Medical Adhesive Remover
Medical Adhesive Remover
Ostomy Barrier Ring
Ostomy Skin Barrier Film
Ostomy Skin Barrier Spray, etc.

7. Both can improve the quality of life of patients

Whether it is one piece vs two piece stoma bag, the ultimate goal is to improve the quality of life of stoma patients. Both have the functions of preventing leakage and odor, and reducing skin damage. All of them can enhance comfort and confidence, allowing patients to freely go out for activities, work and live.

One piece vs two piece stoma bag: what’s the difference?

The One piece stoma bag is thinner, invisible and easier to operate. It is more suitable for beginners of ostomy, the elderly or patients with low discharge. The chassis of the Two piece stoma bag lasts for several days and is skin-friendly. It also has the highest flexibility and the bag body can be replaced at any time. It is more suitable for patients with large amounts of excretion or sensitive skin.

The key difference one piece vs two piece stoma bag is as follows:

	One Piece Stoma Bag	Two Piece Stoma Bag
Structure	The Skin barrier is integrated with the bag	The Wafer can be separated from the bag
Change method	The skin barrier needs to be torn off every time	Wafers can be kept for several days only by changing the bags
Skin protection	Weak (Frequent tearing)	Strong (Wafers are not frequently replaced)
Concealment	Thinner and lighter	Thicker and perhaps more conspicuous
Suitable for	Novices, low excretion volume, and those who prefer simple operations	High excretion volume, active patients, and those with sensitive skin
Leakage risk	Lower	It may be slightly higher depending on the connection method
Cost	Lower	Higher (wafer+ bag separated)
Flexibility	Lower	A variety of bag types are available for selection

Considerations for Patients Choosing Between one piece vs two piece stoma bag

1.Stoma morphology

Protruding stoma:It can be used in most systems
Flat or recessed stoma:A convex base (Convexity) is often required, and it is more common in two-piece types
The stoma is irregular and elliptical: The two piece stoma bag can cut the chassis more precisely

2. Skin condition around the stoma

Sensitive skin prone to allergies:More suitable for the two piece stoma bag, which can reduce tearing. Reduce irritation and damage to the skin.
Good skin tolerance: Both one piece and two piece stoma bag can be used.

3. According to the state of excrement

Ileostomy: Mostly loose stools, frequent excretion. Suitable for two piece stoma bag.
Colostomy: Formed or semi-formed feces. Both one piece and two piece stoma bag can be used.
Urostomy:Continuous outflow of urine. Suitable for two piece stoma bag.

4. According to lifestyle

High exercise volume:Suitable for one piece stoma bag. It is thinner, lighter and more comfortable. It fits better during exercise, reducing friction and detachment.
Busy with work:Two-piece stoma bag is suitable. Just change the bag quickly and there is no need to reattach the chassis.
Frequent outdoor activities and travels:Suitable for two piece stoma bag, more flexible to change.

5. According to physical condition

Elderly patients and those with limited hand movement: Suitable for one piece stoma bag, easy to operate.

6. Cost budgeting

One piece stoma bag has a lower cost and is more economical.
Two piece stoma bag requires the additional purchase of skin barrier, and the cost is slightly higher. If a long-term stoma (permanent stoma) is required, it is usually more cost-effective to use a two-piece stoma bag because the frequency of skin barrier replacement is low.

One piece vs two piece stoma bag, which Option is Right for Me?

If you are in pursuit of lightness, thinness, invisibility, simple and quick operation, the one piece stoma bag is suitable. If you pursue skin protection, flexibility and durability, or need to use the stoma bag permanently, the Two-piece stoma bag is suitable.

For specific one-piece vs two-piece stoma bag, please refer to the following table for the suitable conditions:

Which category do you belong to?	Recommendation stoma bag system
Novice in ostomy	One piece stoma bag
Poor eyesight or hand flexibility	One piece stoma bag
Frequent bowel movements with excessive fluid (Ileostomy)	Two piece stoma bag
The skin condition is good and the tolerance is high	One piece or two piece stoma bag
Sensitive skin	Two piece stoma bag
It is hoped that the bags will be thinner and more concealed	One piece stoma bag
Pursue the concealment of appearance	One piece stoma bag
Regular exercise and long hours of outdoor activities	One piece or two piece stoma bag
Long-term stoma user	Two piece stoma bag

Where to Buy best stoma bag ?

Zodelo, as a professional stoma bag manufacturer, We offer a comprehensive product line from entry-level to premium: Airlora Series, Calmlora Series, Mellora Series, Joylora Series and Ostomy Product Accessories.—there’s always one that fits your daily routine.

We also had ISO13485, CE, and FDA certifications, bring you the most reassuring and high-quality ostomy care.

We will also provide the most high-quality customer service and after-sales service. Help you choose the best stoma bag which suits you.

Get our product catalog and contact us.

FAQs about one piece vs two piece stoma bag

Q1. Can I switch between one piece vs two piece stoma bag?

Sure. The Stoma bag is not a fixed choice for life. Many patients will switch flexibly between one piece vs two piece stoma bag based on the following factors:

Changes in stoma morphology
Changes in abdominal body shape
Changes in the skin condition around the stoma
Changes in work or lifestyle
Travel and sports needs
Pregnancy, surgery, and illness attacks
Weather and temperature changes

Q2. Can diet restrict my choice between one piece vs two piece stoma bag?

No, but if one eats too much or improperly, it can have an impact.

High-fiber or gas-producing foods (such as beans, Onions, high-sugar foods, carbonated beverages, etc.). It is more suitable for the two piece stoma bag. Easy to change bags and release air, reducing skin tearing and irritation.

A diet with high fluid excretion increases the risk of electrolyte fluid loss, as well as the volume and frequency of excretion. It is more suitable for the two piece stoma bag.

If you have a light daily diet or regular bowel movements, the one piece stoma bag is suitable. It is more invisible and comfortable.

Q3. Can activities restrict my choice between one piece vs two piece stoma bag?

It will have a certain impact.

1.High-intensity exercises (running, fitness, ball games)

Suitable for: one piece stoma bag, thinner and lighter. It fits the range of motion of the body, soft and comfortable.

Swimming

Suitable for: one piece stoma bag It is light, thin and concealed, with a low risk of leakage.

Those who engage in heavy physical labor or frequently bend over

Suitable for: two piece stoma bag. The convex surface chassis has better sealing performance, reducing the risk of detachment caused by sweat and movement.

Travel

Suitable for: two piece stoma bag. There is no need to change the chassis at any time. Changing bags outside is faster and more concealed. The large-capacity bag body can be replaced at night, which is flexible and convenient.

People who sit in offices for long periods

Both can be chosen according to personal preference.

Conclusion - one piece vs two piece stoma bag

One piece vs two piece stoma bag, there are both similarities and differences. Whether it is one piece stoma bag or two piece stoma bag, neither is an obstacle to life, but a new starting point for the recovery of physical health. Therefore, each patient needs to truly understand One piece vs two piece stoma bag. Only in this way can the stoma be cared for in a scientific and reasonable manner.

Zodelo firmly believes that whether one piece vs two piece stoma bag, their common mission is to help patients live a more comfortable and healthy life. Zodelo will always be by the side of every patient, jointly caring for the stoma, and providing the most professional and high-quality stoma products for all those in need.

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