02Home & Garden · Updated
How to Read a Hearing Test and Understand the Results
Short answer
Read the audiogram by pitch and hearing level
A hearing test’s audiogram plots the softest sounds you heard at different pitches. Read the symbols and each ear separately, then review the full results and their meaning with the clinician who performed the test.
A hearing test report can look like a chart of scattered dots, abbreviations, and numbers. The main graph, called an audiogram, summarizes how softly you could hear tones at different pitches during the test. It can help you understand the pattern in your results, but it is not a diagnosis by itself.
Before interpreting it, make sure you have the complete report, including its labels and notes. Test methods and symbol conventions can vary, so use the legend on your own chart rather than assuming every audiogram uses identical markings. A hearing-care professional can explain how the chart relates to your listening concerns and any other test findings.
What You’ll Need
- Your complete hearing test report, including the audiogram, legend, and written summary.
- A way to mark or note questions about unclear symbols, test conditions, or recommendations.
- If available, an earlier audiogram for comparison; ideally, the clinician can confirm whether the tests are comparable.
Step-by-Step
- Find the audiogram. Look for a graph with frequency, usually measured in hertz (Hz), along the horizontal axis and hearing level, measured in decibels hearing level (dB HL), along the vertical axis. Reports may also include speech tests and other measurements; those are useful but are not the same as the tone chart.
- Read the pitch axis. Frequency runs from low-pitched sounds on the left to high-pitched sounds on the right. Common test frequencies include 250, 500, 1,000, 2,000, 4,000, and 8,000 Hz, though the chart may show additional points. Each position represents a tone the tester presented.
- Read the hearing-level axis. The vertical scale usually places softer hearing levels near the top and louder levels farther down. A mark lower on the page means a louder tone was needed for you to detect that pitch. The dB HL scale is calibrated for hearing tests; it is not a direct measure of everyday sound volume or a simple percentage of hearing.
- Check which ear each symbol represents. Find the chart’s legend. A common convention uses red circles for right-ear air-conduction results and blue X marks for the left, but symbols and colors can differ. Do not identify an ear by color alone, especially on a black-and-white copy.
- Follow each ear’s marks across the chart. At each frequency, note the threshold mark for that ear. A threshold is the quietest tone you responded to under the test conditions. Connect marks only if the report or clinician does so; lines help reveal a pattern but are not additional test results.
- Look for the overall pattern. Notice whether marks are near one another or differ by pitch, and whether one ear appears different from the other. A pattern that slopes down at higher pitches, for example, indicates that results vary with pitch. Do not use the shape alone to identify a cause.
- Compare air- and bone-conduction results, if shown. Air-conduction testing sends sound through headphones or inserts; bone-conduction testing uses a small vibrator placed behind the ear. The clinician compares these thresholds, sometimes with masking sounds, to help interpret the type of hearing difference. The symbols can be unfamiliar, so use the legend and ask rather than guessing.
- Read the report’s interpretation and speech results. Find any written summary, test-quality notes, speech-recognition results, or recommendations. Speech tests assess a different aspect of listening than pure-tone thresholds. Results can depend on the test setup and response, so a single score should not be read as a complete measure of communication ability.
- Ask what the results mean for you. Ask the tester to explain each ear, the frequencies that matter for your concerns, any uncertainty, and whether comparison with a prior test is valid. Confirm what follow-up, if any, is recommended. An audiogram helps describe hearing; interpretation belongs with the full clinical assessment.
Common Mistakes
- Assuming higher on the graph means worse: On the usual audiogram layout, poorer thresholds appear lower because louder tones were needed. Check the axis labels before interpreting the direction.
- Treating dB HL as a percentage: It does not say what fraction of your hearing remains. It is a test scale for comparing thresholds with expected hearing levels.
- Reading one point as the whole result: Hearing may differ across pitches and between ears. Review the full pattern and the written interpretation.
- Guessing at symbols: Color, shape, and line style can represent different ears or test methods. Use the legend on that report.
- Diagnosing the cause from the chart: An audiogram records responses in a particular test; it does not, on its own, establish why results differ or what treatment is appropriate.
- Comparing charts without checking conditions: Equipment, test methods, and chart conventions may differ. Ask the clinician whether a change is meaningful and whether the tests can be compared.
Tips
- Ask for a copy of the full audiogram and its legend, not just a brief verbal summary.
- Write down the words you hear as “softest sound detected,” “pitch,” and “each ear.” These keep the graph’s basic meaning clear.
- Bring a previous report if you want to discuss changes, and let the clinician compare the original records.
- Ask the clinician to point to a specific mark while explaining it. This is often clearer than discussing the chart abstractly.
- Keep the audiogram with its date and test notes so you do not mistake it for a different test or a current interpretation.
Troubleshooting
The symbols or colors are unclear: Look for the legend, often beside or below the graph. If it is missing or hard to read, contact the clinic for a labeled copy rather than inferring which ear a mark represents.
The graph has several symbols at one frequency: They may represent air conduction, bone conduction, or masked testing. Ask the tester to identify each series and explain which results are used in the interpretation.
There is no written summary: Request an explanation of the findings and any recommended follow-up from the professional who conducted or reviewed the test. Avoid drawing conclusions from an unlabeled chart.
Your new chart seems very different from an older one: Check that both reports use the same scale and that the same test types are being compared. Ask the clinician to review the original results and explain whether the difference may reflect testing conditions or a change in hearing.
The results do not match what you experience: Describe the situations that are difficult, such as following conversation in background noise, and ask whether additional assessment is appropriate. A tone chart does not capture every aspect of listening.
Frequently Asked Questions
What does a normal audiogram look like?
Results near the top of the chart are generally closer to the expected hearing range, but the interpretation depends on the test and the person. Ask the clinician to explain the ranges and findings printed on your report.
Does a lower mark mean worse hearing?
Usually, yes: on the standard layout, a lower mark means a louder tone was needed for detection at that pitch. Confirm the vertical-axis labels because chart formats can differ.
What do the circles and X marks mean?
On many charts, they represent right- and left-ear air-conduction thresholds. That convention is not universal, so check your audiogram’s legend.
Can I tell whether hearing loss is mild or severe?
The report may describe degree using ranges, but the categories and interpretation should be confirmed with the clinician. Do not assign a label from one dot or an unfamiliar scale.
Can an audiogram tell me why my hearing differs?
It shows measured hearing thresholds and may contribute to a broader assessment, but it does not establish the cause by itself. The clinician considers the test method, other findings, and your history.
Why do speech-test results differ from the audiogram?
Pure-tone tests and speech tests measure different responses. Speech understanding can vary with test conditions and listening context, so ask the clinician how the results fit together.
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Further reading: National Institute on Deafness and Other Communication Disorders. Details can change, so check the official page for anything that matters to you. Spotted a mistake? Tell us. How we write an answer.