Smell Loss: What a Supervised Smell Test Can Measure

If you can no longer smell your morning coffee or check whether yesterday’s shirt needs washing, you may want a test that settles what has changed. Before an appointment, ask which part of your smell experience the clinician will assess and how the result will be explained.

Detecting a smell and naming it are different tasks

NIDCD describes two common approaches: measuring the smallest amount of an odor someone can detect, and asking someone to identify odors released from a scratch-and-sniff booklet. These assess detection and identification, respectively.¹

Ask which test you are being offered and what its task involves. Tell the team if the directions are unclear or if you need communication support. You do not need to arrive with your own test result; bring a description of the change you have noticed.

Write down familiar examples, when the change began and whether it comes and goes. If you are unsure whether you detected something or recognized it, say that. Ask the clinician to help you separate those experiences.

The assessment includes more than the test

NIDCD describes a professionally supervised smell test alongside examination of the ears, nose and throat and a review of health history, including injury or chemical exposure. Clinical diagnosis helps identify the underlying cause.¹

Bring your medicine list and mention recent illness, injury or workplace exposures. Ask which details matter to the assessment rather than choosing a cause yourself. If you are wondering about a medicine, discuss that with the prescriber before making any change.

At the results conversation, ask: “What did this test measure? How do the findings fit my examination and history? What still needs checking?” Request an explanation you can keep with the next-step plan.

Include food and everyday safety in the discussion

NIDCD explains that smell contributes to food flavour and can warn of smoke, spoiled food or a gas leak. It recommends discussing a smell disorder with a doctor.¹

Tell the clinician if meals have become less enjoyable or if you are worried about managing at home. Ask what practical support suits your living arrangements and which concerns need a separate appointment. Keep those questions beside your testing questions so they receive attention too.

If you are embarrassed about asking someone else to check a smell, describe that difficulty. You could say: “I keep asking for reassurance about things I used to check myself. Can we discuss a practical plan while you assess the change?”

Agree on the follow-up

Confirm who will explain the report, when you should expect contact and whom to approach if you have not heard. Ask what the clinician recommends now and when that plan should be reviewed. If another test or referral is proposed, request the specific question it is intended to answer.

Arms Up includes a Fresh Log and a visit script. Use them to organize the examples and questions you want to bring to your appointment. Explore the sweat and odor playbook.