What is LARS?

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What is LARS?

LARS, or Low Anterior Resection Syndrome, refers to bowel function changes following Low Anterior Resection Surgery for rectal cancer. Symptoms may include increased bowel frequency, urgency, clustering, and incontinence. Management often involves dietary changes, use of stool bulking medications, pelvic floor exercises, transanal irrigation, and support from healthcare professionals to improve quality of life for affected individuals.

What is LARS?

LARS stands for Low Anterior Resection Syndrome. It is defined as a constellation of symptoms including incontinence, frequency, urgency, or feelings of incomplete emptying which patients experience after having a surgery to remove all or part of the rectum.

What is LARS?

Symptoms of LARS

Frequency

This means emptying your bowels often. Since everyone is different, when we say “frequent”, we mean more than what is normal for you

Urgency

This means that when you feel the need to go, you really need to go. There is little to no warning time to give you a chance to get to the bathroom.

Incontinence to liquid stools

This is accidental leaking of liquid stool.

Incontinence to flatus

This is accidental passing of gas.

Clustering

This means having to go to the bathroom many times within a short period of time because there is still more stool that has to come out. There is a difficulty emptying the bowels.

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Symptoms of LARS

Symptoms of LARS

Frequency

This means emptying your bowels often. Since everyone is different, when we say “frequent”, we mean more than what is normal for you

Urgency

This means that when you feel the need to go, you really need to go. There is little to no warning time to give you a chance to get to the bathroom.

Incontinence to liquid stools

This is accidental leaking of liquid stool.

Incontinence to flatus

This is accidental passing of gas.

Clustering

This means having to go to the bathroom many times within a short period of time because there is still more stool that has to come out. There is a difficulty emptying the bowels. ​

Understanding LARS: A Personal Journey

You may also have OTHER bowel-related symptoms because of your surgery (e.g. bloating, belly cramps, constipation, increased gas), and these symptoms may also trouble you. It is important to understand that every patient experiences LARS differently. You may experience some symptoms associated with LARS, while another patient may experience more or fewer symptoms. Also, some symptoms may bother you more than others. You may find that frequency is the most bothersome symptom that interferes with your day-to-day life, while the next patient may feel that clustering of bowel movements is the most bothersome. Everyone is different.

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Welcome to the LARS Collaborative, a dedicated community of healthcare providers, researchers, and individuals living with LARS (Low Anterior Resection Syndrome). Our diverse team is united by a shared mission: to address the challenges posed by LARS and its associated sequelae.

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