Root Cause Analysis with 5 Whys Technique (With Examples) (2024)

Contents hide

  • What Is the 5 Whys Technique?
  • Example of the 5 Whys Technique
  • How to Conduct a 5 Whys Analysis in 5 Steps
  • When to Use a 5 Whys Analysis
  • Using 5 Whys Template
  • Tips for Mastering the 5 Whys Technique
  • Frequently Asked Questions About 5 Whys

With over two decades in business – spanning strategy consulting, tech startups and executive leadership – I am committed to helping your organization thrive.

At Reliability, we’re on a mission to help enhance strategic decision-making and operational excellence through the power of Root Cause Analysis, and I hope this article will be helpful!

Our goal is to help you better understand 5 whys techniques by offering insights and practical tips based on years of experience. Whether you’re new to doing RCAs or a seasoned pro, we trust this will be useful in your journey towards working hard and working smart.


What Is the 5 Whys Technique?

The 5 Whys Technique is like peeling an onion – it helps you uncover the underlying reasons behind a problem, layer by layer. By repeatedly asking “why” at least five times, this method digs deep to reveal the root cause of an issue. It’s a simple yet powerful problem-solving approach that aims to get to the heart of the matter rather than just addressing surface-level symptoms.

5 Whys Technique: A method that involves iteratively asking “why” five times to unveil the fundamental cause of a problem.

Root Cause Analysis with 5 Whys Technique (With Examples) (1)

In essence, the 5 Whys Technique is not just about fixing what’s broken on the surface; it’s about understanding and addressing the deeper issues that lead to problems in the first place.

Example of the 5 Whys Technique

The 5 Whys Technique is like a detective, uncovering the truth behind recurring problems. Let’s take a look at how this method works in two different scenarios.

Case Study: Manufacturing Defects

Imagine a company that keeps encountering the same manufacturing defects despite various attempts to fix them. By using the 5 Whys Technique, they discovered that the defects were not caused by faulty machinery, as previously assumed, but rather by human error due to unclear operating instructions. This realization led to improved training procedures and clear work guidelines, ultimately eliminating the defects.

Application in Service Industry

Now, consider a service industry struggling with frequent customer complaints and service failures. Through the 5 Whys Technique, it was revealed that these issues stemmed from inadequate staffing levels during peak hours. By addressing this root cause, such as hiring additional staff or adjusting schedules, the service quality can significantly improve, leading to higher customer satisfaction.

These examples illustrate how the 5 Whys Technique can be applied across different sectors to identify and address underlying issues effectively.

How to Conduct a 5 Whys Analysis in 5 Steps

Step 1: Identify the Problem

Before diving into a 5 Whys analysis, it’s crucial to clearly identify the problem or issue at hand. This step sets the stage for the entire process and ensures that the focus remains on addressing the right concern. Take the time to gather relevant data, observe patterns, and consult with team members or stakeholders to gain a comprehensive understanding of the problem.

Step 2: Ask ‘Why’ Five Times

Once the problem is clearly defined, it’s time to start peeling back the layers. The process involves asking “why” five times, not necessarily limited to five questions but enough to delve deeper into the underlying causes of the problem. Each “why” serves as a gateway to uncovering additional factors contributing to the issue. This iterative approach helps in identifying not just one cause, but multiple interconnected elements that may be at play.

By consistently probing deeper with each “why,” you can reveal hidden complexities and nuances that may have been overlooked initially. This method allows for a more thorough understanding of the situation, paving the way for effective solutions that address root causes rather than surface-level symptoms.

This structured approach encourages critical thinking and enables teams to move beyond quick fixes towards sustainable improvements.

When to Use a 5 Whys Analysis

The 5 Whys Technique is a versatile problem-solving approach that can be applied in various scenarios to uncover root causes and drive continuous improvement. Here are two key situations where the 5 Whys Analysis can be particularly beneficial:

Recurring Issues

  • The 5 Whys Technique is especially useful when dealing with recurring issues. Whether it’s a manufacturing defect that keeps resurfacing or a persistent customer complaint in the service industry, this method helps identify the underlying reasons behind these repetitive problems. By repeatedly asking “why,” it becomes possible to trace the issue back to its root cause, allowing for targeted solutions that prevent reoccurrence.

Process Improvement

  • Organizations constantly strive to enhance their processes and workflows for increased efficiency and quality. When seeking to improve existing procedures, the 5 Whys Technique serves as a valuable tool. By systematically analyzing the factors contributing to inefficiencies or bottlenecks, teams can gain insights into how processes can be optimized at their core. This method enables organizations to make informed decisions about process improvements based on a deep understanding of the underlying issues.

In both cases, the 5 Whys Analysis offers a structured yet flexible approach to delve into complex problems, making it an indispensable tool for driving meaningful change and progress within organizations.

Using 5 Whys Template

When it comes to conducting a 5 Whys analysis, utilizing a structured template can greatly facilitate the process and ensure a comprehensive investigation into the root cause identification. Using RCA software such as EasyRCA can benefit the team by streamlining your 5-why process. Here’s how organizations can benefit from using a template:

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Benefits of Using a Template

  • Streamlined Process: A well-designed 5 Whys template provides a clear framework for conducting the analysis, guiding teams through the iterative questioning process. This streamlines the investigation, making it easier to navigate and ensuring that no crucial aspects are overlooked.
  • Thorough Investigation: By following a predefined template, teams are prompted to explore various facets of the problem systematically. This ensures that all relevant factors are considered, leading to a more thorough and insightful investigation into the underlying causes.
  • Consistent Approach: Templates offer a standardized approach to conducting 5 Whys analyses within an organization. This consistency promotes uniformity in problem-solving methods across different teams or departments, enhancing overall efficiency and effectiveness.

Customizing the Template

Organizations have the flexibility to customize 5 Whys templates according to their specific needs and industry requirements. This adaptability allows for tailoring the template to address unique challenges and incorporate industry-specific considerations. Customization may include:

  • Adding Industry-Specific Prompts: Tailoring the template by incorporating prompts or questions relevant to particular industries or types of issues being analyzed.
  • Incorporating Visual Aids: Enhancing the template with visual aids such as flow charts or diagrams can help teams better understand and communicate complex causal relationships.
  • Iterative Refinement: Regularly reviewing and refining the template based on feedback and evolving organizational needs ensures that it remains aligned with current processes and challenges.

Customizing the template empowers organizations to harness the full potential of the 5 Whys Technique in addressing diverse problems while aligning with their unique operational contexts.

Tips for Mastering the 5 Whys Technique

Encouraging Open Communication

In mastering the 5 Whys Technique as a problem-solving method, creating an environment that fosters open communication is paramount. When team members feel comfortable expressing their perspectives and insights, it leads to a more comprehensive exploration of the underlying causes of a problem. Encouraging open communication allows for diverse viewpoints to be considered, providing a holistic understanding of the issue at hand.

By promoting an atmosphere where individuals are empowered to voice their observations and concerns, the 5 Whys analysis can benefit from a rich tapestry of ideas and experiences. This inclusive approach not only enhances the depth of the analysis but also cultivates a sense of ownership and collective responsibility for addressing root causes within the team or organization.

Continuous Improvement Mindset

A key aspect of mastering the 5 Whys Technique is embracing a continuous improvement mindset. Rather than viewing problems as isolated incidents, this approach encourages teams to see them as opportunities for growth and development. By instilling a culture of continuous improvement, organizations can leverage the insights gained from 5 Whys analyzes to drive positive change across various aspects of their operations.

Fostering a mindset focused on continuous improvement entails actively seeking feedback, evaluating processes, and implementing iterative enhancements based on the findings. It involves an ongoing commitment to learning from past experiences and leveraging that knowledge to proactively address potential issues before they escalate. Embracing this mindset ensures that the 5 Whys Technique becomes ingrained in the organizational ethos, leading to sustained progress and resilience in problem-solving efforts.

Frequently Asked Questions About 5 Whys

As we wrap up our exploration of the 5 Whys Technique, let’s address some common questions that may arise regarding this powerful problem-solving method.

What is the primary goal of the 5 Whys Technique?

The primary goal of the 5 Whys Technique is to uncover the root cause of a problem by iteratively asking “why” at least five times. This approach aims to move beyond surface-level symptoms and address the underlying issues that lead to recurring problems.

Is the 5 Whys Technique limited to specific industries or sectors?

No, the 5 Whys Technique is versatile and can be applied across various industries and sectors. Whether it’s manufacturing, healthcare, service, or technology, this method offers a structured yet flexible approach to identifying root causes and driving continuous improvement.

How does the 5 Whys Technique contribute to continuous improvement?

By delving into the fundamental reasons behind problems, the 5 Whys Technique provides organizations with valuable insights for driving continuous improvement. It not only helps in resolving immediate issues but also fosters a culture of ongoing enhancement and development within an organization.

Can the 5 Whys Technique be used for complex problems with multiple contributing factors?

Yes, while initially designed as a simple and straightforward method, the 5 Whys Technique can certainly be applied to complex problems with multiple interconnected factors. By systematically probing deeper into each layer of causality, this technique enables a comprehensive understanding of intricate issues.


I hope you found this guide to 5 whys technique insightful and actionable! Stay tuned for more thought-provoking articles as we continue to share our knowledge. Success is rooted in a thorough understanding and consistent application, and we hope this article was a step in unlocking the full potential of Root Cause Analysis for your organization.

Reliability runs initiatives such as an online learning center focused on the proprietary PROACT® RCA methodology and software. For additional resources, visit Reliability Resources.

Root Cause Analysis with 5 Whys Technique (With Examples) (2024)


What is an example of the 5 Whys in root cause analysis? ›

Example: Here is an everyday example of using the Five Whys to determine a root cause: Problem statement – your car gets a flat tire on your way to work. *IF YOU STOPPED HERE AND “SOLVED” THE PROBLEM BY SWEEPING UP THE NAILS, YOU WOULD HAVE MISSED THE ROOT CAUSE OF THE PROBLEM.

What is a good example of a root cause analysis? ›

The easiest way to understand root cause analysis is to think about common problems. If we're sick and throwing up at work, we'll go to a doctor and ask them to find the root cause of our sickness. If our car stops working, we'll ask a mechanic to find the root cause of the problem.

What is an example of a 5 why incident? ›

Here's the application of 5 Whys to an example mentioned in an OSHA fact sheet: The Problem: A worker slips and falls, and suffers an injury. 1st Why: There was a puddle of oil on the plant floor. 2nd Why: Oil spilled from a compressor.

What are the 5 steps of root cause analysis? ›

What are the five steps of a root cause analysis?
  • Define the problem.
  • Collect data.
  • Identify causal factors.
  • Identify root cause(s).
  • Implement solutions.

How to present a 5 why root cause analysis? ›

Here's a step-by-step guide:
  1. Step 1: Define the problem.
  2. Step 2: Ask “Why?” until you identify the root cause.
  3. Step 3: Analyze the root cause.
  4. Step 4: Implement corrective actions.
  5. Example 1: Manufacturing defect.
  6. Example 2: Customer complaint.
  7. Example 3: Project delay.
Mar 6, 2024

How to complete a 5 why analysis? ›

The method involves cross-functional teams to ensure a comprehensive perspective when identifying the root cause. The process of conducting a 5 Whys analysis includes defining the problem, asking “Why?” five times, identifying the root cause, developing and implementing a solution, and monitoring the results.

How do you answer root cause analysis? ›

To perform an effective root causes analysis, there are six main steps that you need to do.
  1. Define the Problem.
  2. Collect Data about the Problem.
  3. Determine Potential Causal Factors.
  4. Determine the Root Cause or Causes of the Problem.
  5. Prioritize the Causes.
  6. Solution, Recommendation, and Implementation.

How to write a problem statement for root cause analysis? ›

A problem statement is a phrase that summarizes your team's pain points. It's important to find a balance with your problem statement - you want it to be descriptive, but not too descriptive. If your problem statement is too narrow, you'll rush to find alternative solutions too soon.

What is a root cause analysis for dummies? ›

Root cause analysis (RCA) is a tool to help identify what, how, and why an event occurred so that steps can be taken to prevent future occurrences. Additionally, RCA may be used to target opportunities for systemwide improvement.

What is an example of 5 whys in healthcare? ›

Example: 5 Whys

1) Why did the patient receive the wrong medication? The nurse did not complete patient identification. 2) Why did the nurse not complete patient identification? The patient did not have a wristband.

What are the 5 W's for an incident report? ›

Does it adequately answer the 5 W and one H questions: what, where, when, who, why, and how? These same questions structure Barry Poyner's method of crime analysis by breaking up a larger problem into its constituent parts.

What is the root cause analysis of workplace incidents? ›

In the world of workplace safety, a root cause analysis is for identifying, evaluating, and correcting root causes of accidents – but also of near misses and incidents that fall short of an accident.

What is root cause analysis explain with example? ›

RCA is the process of identifying, explaining, and resolving a problem. The root cause is the primary or underlying explanation of the issue. It's also the specific point along the causal chain where intervening or implementing disciplinary action can prevent the issue.

What are the 5 P's of root cause analysis? ›

The five P's stand for “parts, position, paper, people and paradigms.” While the data in this case was collected by software, the method is sound and can be used to get great results without software.

What are the 5 M's of root cause analysis? ›

Several tools could be used in the process of root cause analysis, such as " 5 Ms & E" the abbreviation stands for "Manpower, Machine, Measurement, Material, Methods and Environment" it is a technique where you ask questions about the 5Ms & E till you find the root cause of the problem, following are lists of questions ...

How do you apply the 5 Whys technique to establish the root cause of a common customer problem? ›

The 5 Whys technique is a problem-solving method used to identify the root cause of an issue by repeatedly asking "why" (typically five times) until the fundamental problem is uncovered. Begin by defining the problem and asking the first "why" to identify the initial cause.

When using the 5 whys to uncover the root cause of a problem? ›

Moments like these are when we at Buffer turn to a simple but remarkably effective process: The 5 Whys. It's just as it sounds: A discussion of the unexpected event or challenge that follows one train of thought to its logical conclusion by asking “Why?” five times to get to the root of what happened.

Is the 5 Whys is a common tool used during root cause analysis? ›

The 5 Whys method allows uncovering the root cause of a problem by simply asking "Why" five times. This interrogative technique is one of the most effective tools for root cause analysis in Lean management.

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