Degrees of Hearing Loss: From Mild to Profound

In this article, you’ll learn how hearing loss is measured, what the different degrees mean in daily situations, when it may be time to schedule a hearing test, and which treatment options may help at each level.

What Are the Degrees of Hearing Loss?

Degrees of hearing loss are categories that describe how severe hearing loss is based on the auditory thresholds – the quietest sounds  a person can detect at least 50% of the time during a hearing test.

You may also hear them called levels of hearing loss, stages of hearing loss, levels of deafness, or simply hearing loss degrees. These terms all refer to the same idea: to what extent hearing sensitivity has been reduced.

It is important to note that these degrees describe how much hearing is reduced, not why. They do not explain the cause or the type of hearing loss (for example, conductive or sensorineural). Two people with the same level of hearing loss may experience sound differently depending on which pitches are affected and whether one or both ears are involved.

The next sections explain each degree of hearing loss in more detail, from mild to profound.

How Is Hearing Loss Measured? (Hearing Tests, Audiograms, and dB HL)

Hearing loss is identified using a hearing test carried out by an audiologist or hearing professional.

During a typical hearing test:

1. You sit in a quiet room or sound booth.
2. You wear headphones.
3. You listen to beeps or tones at different pitches and volumes.
4. You signal when you hear a sound.

The professional records the softest sounds you can hear at each pitch. These results are recorded in decibels hearing level (dB HL).

• Lower numbers indicate better hearing, meaning you can hear softer sounds.
• Higher numbers mean sounds must be louder before you can hear them, higher dB HL results therefore indicate reduced hearing sensitivity.

For example, “40 dB hearing loss” does not mean 40% hearing—hearing loss is measured in decibels, not percentages.

Your results are shown on an audiogram, sometimes called a “hearing chart.” This graph displays the quietest sounds you can hear across low to high pitches.

Speech sounds appear in different areas of the audiogram. Some softer consonants are harder to hear than louder vowel sounds. This is why voices may sound “loud but unclear” in some types of hearing loss —you may hear someone talking but miss important speech details.

Degrees of Hearing Loss (Chart)

The degrees of hearing loss range from normal hearing to profound hearing loss. Exact dB HL cut-offs can vary slightly between guidelines, but the everyday meaning of each degree is similar.

Below is a simplified overview:

These levels of hearing loss help hearing professionals recommend appropriate support, treatment options and hearing technology.

Everyday Impact of Different Levels of Hearing Loss

The everyday impact of the different levels of hearing loss depends on both severity and listening environment.

With mild hearing loss, you may:

• Frequently ask people to repeat themselves
• Struggle to hear more in background noise
• Feel that others “mumble”

With moderate hearing loss, you may:

• Miss parts of conversations
• Avoid social gatherings
• Feel mentally tired after listening for long periods of time

With severe or profound hearing loss, you may:

• Miss doorbells, phone calls, or your alarm clock
• Rely heavily on visual cues
• Find conversations extremely difficult without hearing devices

If you’re unsure whether what you’re experiencing is typical, you can read more about common hearing loss symptoms and possible hearing loss causes.

When to Take a Hearing Test and Treatment Options

If you notice signs of any degree of hearing loss, scheduling a professional hearing test is the best next step.

Consider booking a hearing test if:

• You often ask people to repeat themselves
• You struggle to follow conversations in background noise
• Others say your TV or music volume is too loud
• You miss doorbells, alarm clocks, or phone calls
• Voices sound unclear,distorted, or muffled

A qualified audiologist or ENT specialist can perform a comprehensive hearing evaluation and explain your results clearly. Based on your degree of hearing loss, they can recommend appropriate treatment options, such as hearing aids or other hearing solutions.

If you are unsure whether to schedule an appointment, an online hearing test can provide an initial indication — but it does not replace a professional assessment.

Treatment Options by Degree

Treatment depends on your individual hearing test results, communication needs and professional assessment.

Mild-to-moderate hearing loss

• Hearing aids can often help you hear speech more clearly.
• Communication strategies, such as reducing background noise and sitting closer to speakers, can also improve understanding

Severe-to-profound hearing loss

• May require powerful (high-gain) hearing aids.
• If hearing aids do not provide sufficient clarity, you may be evaluated for a cochlear implant or other implantable hearing solutions

The right solution depends on a combination of factors, including your specific degree of hearing loss, your lifestyle, and your communication needs.

Next Steps if You Have Any Degree of Hearing Loss

The most important thing to remember: Support is available to people with every degree of hearing loss.

Understanding the degrees of hearing loss is the first step toward finding the right solution to support your hearing health.