Colo-Majic® Enterprises Ltd

Get Free Samples

Is a Colostomy Bag for Urine or Poop?

One of the most common questions and misconceptions surrounding ostomy care is the confusion regarding whether a colostomy bag is designed for urine or stool management. A urostomy is typically performed when the bladder is compromised, either due to disease, injury, or congenital abnormalities. This surgical intervention creates an alternate route for urine to exit the body, bypassing the bladder entirely. On the other hand, a colostomy redirects a portion of the large intestine to an opening (stoma) on the abdomen, allowing stool to pass through a new pathway.

Due to a lack of awareness and similarity in terminology (urostomy and colostomy), people often use them interchangeably, keeping in mind the fact that both hold body waste. However, it is crucial for ostomates and their caregivers to have a complete understanding of the purpose and functions of urostomy and colostomy bags.

In this article, we will reveal the basic differences between urostomy and colostomy along with their functions and purposes. Not only this, but we will also debunk the myths about colostomy bags for urine management. Let’s get started.

Urostomy vs Colostomy Bag

A urostomy is a surgical procedure in which a hole or stoma is created in the abdomen to reroute urine. This diversion is necessary because the bladder cannot perform its normal function of storing and voiding urine. In order to hold urine, a specialized medical device called a urostomy bag is used. The bag is attached to the stoma created on the abdomen. Urostomy bags are specifically designed to collect urine diverted from the kidneys through the stoma. They have a drainage port at the bottom to empty urine and are often smaller in size compared to colostomy bags, reflecting the difference in the waste they handle.

Related: Buy Ostomy Liners

Reasons for urostomy:

There are several reasons that necessitate the option of urostomy surgery. Bladder cancer, chronic bladder conditions, urinary incontinence, kidney disease, and recurring kidney infections are some of the conditions that may prompt the need for a urostomy.

On the other hand, a colostomy is a surgical procedure in which an opening is created in the abdomen, which is called a stoma. In a colostomy, a part of the intestine is brought outside the abdomen to the abdominal opening called a stoma. The purpose of the stoma is to excrete bodily waste, which is stool. In order to hold the stool, a special bag called a colostomy bag is used.

Related: Buy Ostomy Supplies

Reasons for colostomy:

Conditions in which the colon is not functioning properly such as colorectal cancer, colon cancer, diverticulitis, inflammatory bowel disease, Hirschsprung disease, or Crohn’s Disease may require colostomy surgery. A colostomy can be permanent or temporary, depending on the underlying disease condition.

Related: How to Use Lubricating Deodorant For Ostomy Pouches?

Debunking Myth: colostomy can be used for urine:

One of the most common misconceptions is the belief that colostomy bags can be used for urine drainage. This is a myth. Colostomy bags are special medical devices intended solely for collecting fecal matter. Considering the design and structure of colostomy bags, they cannot effectively handle urine. Attempting to use a colostomy bag instead of a urostomy bag for collecting urine can result in severe hygiene issues, urine leakage, and skin irritation. Therefore, it’s important to understand the difference between urostomy and colostomy bags to avoid potential complications.

Does Urine Go into a Colostomy Bag?

To understand why urine does not enter a colostomy bag, let’s briefly review the anatomy and function of the digestive and urinary systems. The urinary system and digestive system are two different systems of the body involving entirely different organs.

Urine is produced by the kidneys, the main organs of the urinary system. It travels through the ureters to the bladder and is expelled from the body via the urethra. In contrast, the digestive system processes food, forming feces which are expelled from the body through the large intestine.

Technically and logically speaking, there is no natural connection between the colon and the urinary system in a healthy body, so urine never enters the colon or colostomy bag under normal circumstances.

For individuals with a urostomy, urine bypasses the bladder and flows directly from the stoma into the urostomy bag. These bags are designed with features to prevent urine leakage and ensure comfort and convenience for the user.

Stoma Formation in Colostomy and Urostomy

A urostomy is often performed when the bladder is removed (cystectomy) due to bladder cancer or other urinary tract conditions. The surgeon creates a stoma from a portion of the small intestine, known as an ileal conduit, to redirect urine out of the body.

Urostomy bags for urine collection come in various styles, including one-piece and two-piece systems. They are made of skin-friendly materials and have odor-barrier features to maintain discretion and confidence for the ostomates. Urostomy is not a barrier to your daily life activities. Adjustments are necessary, such as changing the bag and managing urine output.

On the other hand, a colostomy is performed to treat conditions affecting the colon, such as colorectal cancer, Crohn’s disease, or diverticulitis. Depending on the specific medical situation, the surgeon may create a temporary or permanent colostomy.

Colostomy bags are tailored to collect stool from the stoma. They come in different sizes and types, including closed-end pouches and drainable pouches with a clip or closure system. Modern colostomy bags are discreet, odor-resistant, and designed for comfort and ease of use. Lifestyle adjustments are necessary for living with a colostomy, such as maintaining a healthy diet and monitoring stool consistency.


In conclusion, urostomy and colostomy bags serve distinct purposes in managing urinary and bowel functions for individuals who have undergone specific surgical procedures. It is extremely important to understand the difference between urostomy and colostomy bags for maintaining overall well-being. Remember, if you or someone you know is living with an ostomy, seek guidance from healthcare professionals specializing in ostomy care. With the right knowledge and support system, living with an ostomy can be manageable, allowing individuals to focus on living life to the fullest.

Scroll to Top