What Is Root Cause Analysis? Symptom vs. Cause Explained

What Is Root Cause Analysis?

Textbook Definition

Root cause analysis is a structured method for identifying the underlying cause of a problem, rather than its symptoms, so that corrective action prevents the problem from happening again.

In Plain English

Root cause analysis means finding the real reason a problem keeps happening, instead of fixing it every time it shows up. The symptom is what you see. The cause is why it happens. Fix the cause and the symptom goes away for good.

Why Do the Same Problems Keep Coming Back?

Because fixing symptoms feels productive. You are fast, you are busy, you are winning. Every week you put out the fire, feel great, and move on. And every week it starts again, because the thing underneath it never changed.

Handling problems after they happen is called reactive management. Every business needs some. But it never ends on its own. The only way out is to stop asking "how do I fix this?" and start asking "why did this happen?"

Signs you have this problem:

  • You fix the same kind of problem more than once a month.
  • Each problem looks different on the surface: a chair one day, a lamp the next.
  • You are proud of how fast you solve things.
  • Your fix is "be more careful," and it has not worked.
  • Employees are praised for putting out fires, never for preventing them.
  • You pay for the same mistake over and over, in time, refunds, or fines.
The same fire twice is not bad luck. It is a missing system. Find the gap underneath and the fire stops starting.

What It Looks Like When You Only Fight the Fire

From the Fabled Forest · Chapter 5

Dumpster Dani runs a delivery service that will haul anything, anywhere, the moment anyone asks. She has solved more problems than anyone in the forest. She has never noticed how many of them are the same problem.

In one week she got four parking tickets in four loading zones. Each time, she had brought the wrong item in first, gone back to dig through her truck for the right one, and run over the time limit. Dishes on Monday. A lamp on Wednesday. A chair, then books. She fixed every one the same day and was proud of it.

Doctor Owl turned her ticket over and asked her why. Then he asked why again. And again, until the answer was something she could actually fix. It turned out the problem had more than one cause.

Dani's story is Chapter 5 of Management and Leadership for Small Businesses, Book 1 of Dr. Paul's Fabled Forest Business School Series.

How to Do a Root Cause Analysis in 5 Steps

No consultants, no software. Two weeks of notes and one question, asked five times.

  1. Write down every problem you fix for two weeks.

    Every refund, every redo, every "quick fix." Just a line each. You are building the evidence.

  2. Circle the ones that show up more than once.

    Look past the surface. A wrong chair and a wrong lamp are the same problem: the wrong item went out.

  3. Ask "why did this happen?" five times.

    Each answer becomes the next question. Stop when the answer is something you can change, like a missing label, a missing step, or a missing rule.

  4. Check for a second cause.

    Some problems have more than one. Ask what else would have to change for the problem to stop completely.

  5. Fix the cause, then count.

    Make the change. Count the problem for a month. If it comes back, you have not found the whole cause yet. Go back to step 3.

Dr. Paul's Insight

Where most people slip is stopping at the first answer. "The driver grabbed the wrong box" is a symptom. "The shelves have no labels" is a cause. The first answer is almost always a symptom. Across 1,000+ clients, the fixes that last are the cheap, boring ones found at the bottom of the fifth why.

Worked Example: What a Repeat Problem Costs A delivery business gets four $50 tickets a week from the same root cause. 4 × $50 = $200 a week. $200 × 50 working weeks = $10,000 a year, before the lost time and the annoyed customers. The fix at the bottom of the fifth why: shelf labels, about $10, and one evening. Figures are an illustration to show the math, not a projection for your business.

Sample: A Five Whys Chain

Here is what the five whys looks like on paper for a common small business problem.

Problem: Customers complain that orders arrive lateStarted: About six weeks ago
Why 1: Why are orders late?They leave the shop a day after they are promised.
Why 2: Why do they leave a day late?Packing waits on a key supply that runs out.
Why 3: Why does the supply run out?Nobody reorders it until the box is empty.
Why 4: Why does nobody reorder in time?There is no reorder point, and no one owns the count.
Why 5: Why is there no reorder point?It was always in the owner's head. Nobody else knew the number.
Root cause and fixSet a written reorder point, assign one person to the weekly count, and track late orders for a month.

Sample for illustration. Your five answers will be different. The method is the same.

Reward Whoever Puts Out the Most Fires?

In the book, a company called Talon and Beak keeps offering owners shortcuts. Every one is legal. Every one sounds reasonable. Every one costs more than it saves. Here is the one in Chapter 5.

The Shortcut

Pay a bonus to whoever puts out the most fires.

Why It Works for a While

Fires get put out fast. Everyone looks busy. You feel like the team is on top of things.

What It Costs

You are paying a bonus for the problem never going away. Nobody gets rewarded for making sure the fire never starts, so nobody does.

Reward the person who finds the cause, not the person who fights the same fire every week. That one change shifts the whole team from reacting to fixing.

Video: The Five Whys, Live

Video Coming Soon

What Is Root Cause Analysis? Symptom vs. Cause Explained

Dr. Paul runs the five whys on a real-looking business problem, start to finish.

Why Did You Grab the Wrong Box?

Chapter 5 · Root Cause Analysis

If It Fits, I'll Haul It: A Raccoon's Fire Drill

"Why did you bring the wrong thing?"

Dani frowned. "Because I grabbed the wrong box off the truck."

"Why did you grab the wrong box?"

There was a long pause. Then Dani said, in a much smaller voice, "Because I can't tell them apart. The shelves in the truck don't have labels. I just know where everything is." Another pause. "Usually."

Was that the whole cause? Find out why Dani's problem had two roots, and get the five whys scroll, in Chapter 5. Book 1 of Dr. Paul's Fabled Forest Business School Series.

Get the Book on Amazon →

Root Cause Analysis Questions

What is an example of root cause analysis?
A delivery driver keeps getting parking tickets. Why? She is over the time limit. Why? She is digging through the truck. Why? She grabbed the wrong box. Why? The shelves have no labels. The root cause is unlabeled shelves, and the fix is a roll of labels, not more careful driving.
What is the difference between a symptom and a root cause?
A symptom is what you see: the late order, the angry customer, the ticket. The root cause is why it keeps happening. Fixing a symptom solves today. Fixing the root cause stops the problem from coming back.
What is the 5 whys method?
It is a simple root cause technique. You state the problem, ask why it happened, then ask why about that answer, and keep going, about five times, until you reach something you can change. The number five is a guide, not a rule. Stop when the answer is fixable.
What is reactive management?
Reactive management is handling problems after they happen, putting out fires. Every business needs some of it. But it never ends on its own. Proactive management, finding causes and building systems before problems start, is what eventually makes the fires stop.

Written by Dr. Paul Borosky, DBA, MBA, business consultant, author, and educator with 14+ years and 1,000+ clients served. Want help finding what keeps breaking in your business? Dr. Paul works with owners one-on-one.

This page is for general educational purposes only. It is not legal, financial, tax, accounting, or other professional advice. Dollar figures are illustrations. The Fabled Forest and its characters are fictional. For decisions about your own business, consult a qualified professional.