Short answer

Designers should consider offering adaptable toilet solutions or incorporating ergonomic features into standard sitting toilets to optimize both digestive health and user comfort.

Field
Human Factors
Source
BMC Public Health (2025)
Method
Scoping Review
Evidence
Moderate effect

Toilet posture significantly influences digestive efficiency and musculoskeletal strain, with squatting potentially aiding bowel evacuation but posing risks for certain groups, while sitting offers comfort but may exacerbate bowel issues. This human factors research insight is drawn from a 2025 study published in BMC Public Health. Using Scoping review, researchers explored how this design variable affects real-world outcomes. The key design takeaway: Designers should consider offering adaptable toilet solutions or incorporating ergonomic features into standard sitting toilets to optimize both digestive health and user comfort.

Study
Human FactorsNew This WeekModerate effect

Squatting vs. Sitting Toilets: Impact on Digestive and Musculoskeletal Health

Toilet posture significantly influences digestive efficiency and musculoskeletal strain, with squatting potentially aiding bowel evacuation but posing risks for certain groups, while sitting offers comfort but may exacerbate bowel issues.

BMC Public Health · 2025

01

Key Findings

  • 01Squatting may reduce digestive strain and enhance bowel evacuation, potentially benefiting individuals with constipation.
  • 02Sitting toilets may increase bowel-related issues but offer comfort for specific populations, such as older adults.
  • 03Musculoskeletal outcomes vary; squatting can lead to strain in vulnerable groups, while ergonomically designed sitting toilets can reduce joint stress.
  • 04Ergonomic innovations like adjustable seats and non-slip surfaces show promise in improving comfort and minimizing health risks.
02

Application

Design takeaway

Designers should consider offering adaptable toilet solutions or incorporating ergonomic features into standard sitting toilets to optimize both digestive health and user comfort.

How to apply

When designing public restrooms, healthcare facilities, or even residential bathrooms, consider the implications of toilet posture on user health and explore options for adjustable height or integrated footrests to facilitate a more squat-like position.

Project actions

  • 01When researching user needs, ask about comfort and ease of use related to toilet posture.
  • 02Consider prototyping different toilet seat heights or angles to test their ergonomic impact.
03

Method & Evidence

AimTo synthesize evidence on the digestive, musculoskeletal, and ergonomic health outcomes associated with squatting and sitting toilet postures.
MethodScoping Review
ProcedureA comprehensive search of academic databases (Scopus, PubMed, Web of Science) was conducted, followed by hand searches and snowballing. Studies were screened by two reviewers, and their methodological quality was assessed using JBI checklists.
ContextSanitary facility design and public health

Variables

IVToilet posture (sitting vs. squatting)
DVDigestive health outcomes (e.g., ease of evacuation, constipation), Musculoskeletal strain, User comfort
CVIndividual health conditions, age, cultural background, toilet design specifics (e.g., seat height, material)
04

Strengths & Limitations

Strengths

  • +Comprehensive review methodology adhering to PRISMA-ScR guidelines.
  • +Inclusion of diverse health outcomes beyond just digestive health.

Limitations

The findings are based on a review of existing studies, which may have their own limitations in terms of sample size, methodology, and generalizability.

Reliability & validity

The reliability of the findings is supported by the systematic review process and the use of established quality appraisal tools. Validity is enhanced by the broad scope of the review, but may be limited by the methodological quality of the included primary studies.

Think critically

How might cultural preferences for toilet posture influence the adoption of new designs, and what are the ethical considerations in promoting one posture over another?

05

Design Principles

"Design for diverse physiological needs and functional outcomes."

Understanding the biomechanical and physiological differences between sitting and squatting toilet postures is crucial for designing sanitary facilities that promote user health and comfort. This insight informs product development, public health initiatives, and the creation of inclusive environments.

06

What This Means for Your Design

How you sit on the toilet matters for your digestion and muscles. Squatting can be better for pooping but harder on your joints, while sitting is comfy but might cause constipation. Good design can make sitting toilets better.

How to use in your project

  • 1.Use this research to justify design choices related to user comfort, health outcomes, and ergonomic considerations in your design project.
07

Add to My Project

08

Quick Cite

Paragraph starter

This research indicates that toilet posture significantly impacts user health, with squatting potentially enhancing digestive function but posing musculoskeletal risks, while sitting toilets offer comfort but may contribute to bowel issues. Ergonomic design interventions are crucial for optimizing sitting toilet functionality and user well-being.

09

Source

BMC Public Health

Sitting vs. squatting: a scoping review of toilet postures and associated health outcomes

journal · 2025

View source

Questions About This Research

What does the research say about squatting vs. sitting toilets: impact on digestive and musculoskeletal health?
Designers should consider offering adaptable toilet solutions or incorporating ergonomic features into standard sitting toilets to optimize both digestive health and user comfort. Evidence: BMC Public Health (2025).
Why does "Squatting vs. Sitting Toilets: Impact on Digestive and Musculoskeletal Health" matter for design?
Understanding the biomechanical and physiological differences between sitting and squatting toilet postures is crucial for designing sanitary facilities that promote user health and comfort. This insight informs product development, public health initiatives, and the creation of inclusive environments.
How can designers apply this research?
Designers should consider offering adaptable toilet solutions or incorporating ergonomic features into standard sitting toilets to optimize both digestive health and user comfort.
What were the main findings?
Squatting may reduce digestive strain and enhance bowel evacuation, potentially benefiting individuals with constipation.. Sitting toilets may increase bowel-related issues but offer comfort for specific populations, such as older adults.. Musculoskeletal outcomes vary; squatting can lead to strain in vulnerable groups, while ergonomically designed sitting toilets can reduce joint stress.. Ergonomic innovations like adjustable seats and non-slip surfaces show promise in improving comfort and minimizing health risks.
What research method was used?
Scoping Review.
How strong is the evidence?
Evidence strength is rated Moderate effect, based on a 2025 journal from BMC Public Health.
What should I do differently in my next project?
When designing public restrooms, healthcare facilities, or even residential bathrooms, consider the implications of toilet posture on user health and explore options for adjustable height or integrated footrests to facilitate a more squat-like position.
What are the limitations?
Methodological limitations in the reviewed studies, including small sample sizes and inadequate control of confounding factors, prevent definitive conclusions.