What Is a Problem-Solution Essay in IELTS Writing Task 2?
A problem-solution essay asks you to identify the causes or problems associated with a given issue and then propose realistic remedies. The instruction typically reads: “What are the causes of this problem and what measures could be taken to solve it?” or“Why is this happening and what can be done?” Your task is not simply to describe the issue but to demonstrate analytical thinking about its origins and propose targeted, logically connected solutions.
Problem-solution prompts account for approximately 15–20% of all IELTS Writing Task 2 questions (British Council IELTS Preparation resources, 2024). They are one of the more structurally predictable essay types, which means a candidate who learns the format thoroughly can approach them with high confidence. If you are new to Task 2, start by reviewing the universal essay structure guide before working through the problem-solution format specifically.
Problems vs. Causes: A Critical Distinction
Many candidates conflate problems with causes, which produces a muddled body paragraph that the examiner cannot evaluate cleanly. Understanding the difference is essential for Task Achievement.
| Term | Definition | Example (topic: rising obesity rates) |
|---|---|---|
| Problem | The negative situation or consequence itself | Increasing rates of heart disease and type 2 diabetes |
| Cause | The underlying reason the problem exists | Sedentary lifestyles driven by screen-based entertainment |
| Solution | A targeted measure that addresses a specific cause | Government-funded physical activity programmes in schools |
Read the prompt carefully. If it asks for problems, describe the negative consequences. If it asks for causes, explain why the situation arose. If it asks for both, split your first body paragraph accordingly — but within 40 minutes, two well-developed causes (or two well-developed problems) are always stronger than four underdeveloped ones.
How to Identify a Problem-Solution Prompt
Common instruction phrasings include:
- “What are the causes of this problem and what measures can be taken to solve it?”
- “Discuss the problems associated with … and suggest some possible solutions.”
- “What are the reasons for … and what can individuals and governments do to address it?”
- “Why is this a problem and what steps can be taken?”
A two-part question (“Discuss the causes and suggest solutions”) is structurally identical to a problem-solution essay. Do not treat the two parts as separate essays — they share an introduction and a conclusion, with one body paragraph per part.
The 4-Paragraph Problem-Solution Structure
| Paragraph | Purpose | Approximate word count |
|---|---|---|
| Introduction | Acknowledge the problem + state the essay’s scope | 45–55 words |
| Body Paragraph 1 | Causes (or problems) with explanation and example | 90–110 words |
| Body Paragraph 2 | Solutions directly addressing the causes identified | 90–110 words |
| Conclusion | Summarise causes and reinforce solutions | 35–45 words |
The alignment rule
The single most important structural principle in a problem-solution essay is alignment: every solution in Body Paragraph 2 must directly address a cause or problem identified in Body Paragraph 1. If you identify sedentary lifestyles and poor dietary habits as causes, your solutions must target those specific causes — not introduce an unrelated third cause in the guise of a solution. Misalignment is one of the primary reasons candidates score Band 5–6 for Task Achievement on this essay type.
Step-by-Step Writing Process
Step 1 — Analyse the prompt (2 minutes)
Determine whether the prompt asks for causes, problems, or both. Underline the key issue. Write two causes (or problems) and one solution per cause before you begin writing. This planning step ensures alignment and prevents you from realising mid-essay that your solutions do not match your causes.
Step 2 — Write the introduction (5 minutes)
The introduction has two sentences. The first paraphrases the problem described in the prompt. The second signals the essay’s scope — that you will examine the causes and then propose solutions. You do not need to preview your specific causes at this stage.
Example prompt: “Traffic congestion in major cities is a growing problem. What are the causes of this issue and what measures can be taken to solve it?”
Weak introduction: “Traffic congestion is a problem in cities. There are many causes and solutions.”
Strong introduction: “Urban gridlock has emerged as one of the most pressing infrastructure challenges facing metropolitan areas worldwide. This essay will examine the principal causes of this congestion and outline the most effective policy measures available to address it.”
Step 3 — Body Paragraph 1: Causes (12 minutes)
Present two causes using the PEEL framework: state the cause (Point), explain the mechanism (Explanation), provide a real-world illustration (Example), and connect back to the overall problem (Link).
Transition between your two causes using: “A further contributing factor is …” or “Compounding this issue, …” rather than a simple “Also,” which reads as informal.
Step 4 — Body Paragraph 2: Solutions (12 minutes)
Present one solution per cause. For each solution, explain specifically how it targets the corresponding cause — the word “therefore” or “as a result” is a useful structural signal: “Since the primary cause is …, the most effective solution would therefore be …”
Avoid generic solutions such as “governments should do more” or “people should change their behaviour.” These are Band 5 responses. Name a specific mechanism: congestion pricing, subsidised public transport passes, employer-mandated remote-work policies.
Step 5 — Write the conclusion (4 minutes)
Restate the core problem and briefly reinforce the solutions proposed. Two sentences are sufficient. Do not introduce new causes or solutions in the conclusion.
Band 9 Sample Essay with Annotations
Prompt:“The number of people who are overweight is increasing in many countries. What are the main causes of this problem and what measures can be taken to address it?”
Introduction: Obesity rates have risen sharply across both developed and developing nations over the past three decades, placing significant strain on public health systems. This essay will examine the two principal causes of this trend and propose targeted interventions that governments and individuals can implement to reverse it.
Annotation: The background sentence quantifies the trend (“past three decades”) and contextualises its consequences (“public health systems”). The thesis signals scope without pre-empting the body paragraphs in excessive detail — satisfying Task Achievement while preserving space for development.
Body Paragraph 1 (Causes): The most significant cause of rising obesity rates is the structural shift toward sedentary work and leisure patterns. As employment in manufacturing and agriculture has declined in favour of desk-based and service-sector roles, the average daily caloric expenditure of working adults has fallen substantially. A 2022 analysis published in The Lancet found that physical inactivity now accounts for approximately 9% of premature global mortality, reflecting how deeply it is embedded in modern lifestyles. A further contributing factor is the widespread availability of ultra-processed foods, which are calorically dense, nutritionally poor, and engineered to override satiety signals. In many lower-income urban areas, these products are both cheaper and more accessible than fresh produce — a disparity that disproportionately affects economically disadvantaged communities.
Annotation: Two distinct causes are identified and developed. Each has an explanation and a specific supporting detail. The second cause introduces a socioeconomic dimension, demonstrating critical thinking beyond a superficial analysis — a Band 9 marker under Task Achievement.
Body Paragraph 2 (Solutions):Since sedentary behaviour is rooted in environmental design, governments can incentivise physical activity by investing in active infrastructure — subsidised gym access, protected cycling lanes, and mandatory physical education in secondary schools. Finland’s national “Schools on the Move” programme, which requires students to accumulate at least 60 minutes of moderate activity daily, contributed to a measurable reduction in childhood overweight prevalence between 2010 and 2020 (Finnish Institute for Health and Welfare, 2021). To address the overconsumption of ultra-processed foods, fiscal measures such as a tiered sugar tax — already implemented in the United Kingdom and Mexico — have demonstrated the ability to shift consumer purchasing behaviour without restricting individual choice. Combined, these targeted interventions address both the activity deficit and the dietary patterns identified as the primary drivers of obesity.
Annotation: Each solution maps directly onto a cause from Body Paragraph 1 — active infrastructure targets sedentary behaviour; fiscal policy targets ultra-processed food consumption. Named country examples and a cited source elevate specificity. The closing link sentence makes the alignment explicit, which is exactly what Band 9 Task Achievement requires.
Conclusion: In summary, the obesity epidemic is driven primarily by sedentary modern lifestyles and the structural dominance of cheap, nutritionally deficient food. Addressing these root causes through investment in active environments and evidence-based fiscal policy represents the most sustainable path toward reversing this trend.
Annotation: The conclusion synthesises both causes and both solutions in two sentences without introducing any new information. Approximate essay word count: 320 words.
Vocabulary for Problem-Solution Essays
The academic phrases below are drawn from the broader Task 2 vocabulary resource, which organises language by topic and function. If this is your first time writing a problem-solution essay, that guide is worth reading alongside the tips below. Candidates preparing for the IELTS exam for the first time may also find the IELTS for beginners guide a useful starting point before tackling individual essay types.
Describing problems and causes
- A principal contributing factor is …
- This issue stems from …
- The root cause of … lies in …
- … can be attributed largely to …
- A further driver of this trend is …
- This phenomenon is exacerbated by …
Proposing solutions
- One effective measure would be to …
- Governments could address this by …
- A targeted intervention in this area is …
- In order to tackle …, authorities should …
- This could be remedied through …
- A pragmatic policy response would involve …
Signalling alignment between causes and solutions
- Since the primary cause is …, the most logical solution is therefore …
- Given that … underlies this issue, an effective remedy would be …
- Addressing the root cause requires …
- These targeted measures directly counter the causes identified above.
Academic hedging phrases
- Evidence suggests that …
- Research indicates that …
- It can be argued that …
- This is likely to result in …
- In many cases, …
Common Mistakes in Problem-Solution Essays
Solutions that do not match the causes
If you identify “inadequate urban planning” as a cause of traffic congestion but then propose “drivers should use public transport more,” you have not addressed your own cause. The examiner will identify this misalignment and penalise you under Task Achievement. Always write your solutions with your causes in front of you.
Describing the problem in both paragraphs
A common error is using Body Paragraph 2 to further describe the problem rather than to propose solutions. Once you have identified the causes in Body Paragraph 1, the second paragraph must move forward — to remedies, not further analysis of the same issue.
Vague or unactionable solutions
“People should be more careful” and “governments need to do something” are Band 5 solutions. Every solution must be specific enough that a policymaker or individual could implement it. Name the mechanism, policy, or behaviour change explicitly.
Only one cause or one solution
A single cause paragraph with a single solution produces an essay that is structurally thin and will struggle to reach the 250-word minimum with fully developed arguments. Two causes and two corresponding solutions is the target. If you genuinely have only one strong cause, develop it in exceptional depth — but two is almost always achievable within the time limit.