Anhedonia is the loss of pleasure and interest in things that used to matter, and it is not a minor accompaniment to depression. It is one of the two symptoms that can anchor the diagnosis on its own.
It is also the symptom people are worst at describing to a doctor, which matters, because describing it precisely can change what you are offered.
The distinction that explains the confusion
The most useful thing to know is that pleasure is not one system.
Reward research separates wanting, the motivation that moves you towards something, from liking, the pleasure once you have it. They are produced by partly different systems, and dopamine turns out to be necessary for the wanting and not for the liking. [berridge-1998-wanting-liking]
That split explains an experience people find impossible to articulate. You are not certain you would enjoy seeing a friend, so you do not arrange it. Nothing gets started, so nothing gets enjoyed, and the absence of evidence that you can still enjoy things becomes evidence that you cannot.
Most people lose the wanting before they lose the liking. Which means the thing you have concluded about yourself, that you no longer enjoy anything, is frequently untested rather than true.
A schematic of the wanting and liking distinction described in this article and in the reward research cited. Not measured data.
The third bar is where the two accounts diverge, and it is the one worth testing rather than assuming.
Why it matters clinically
Depression with prominent anhedonia is not simply more depression. It appears to behave differently.
A 2025 review looking at the clinical features of anhedonia in depression reported that the benefit of some selective serotonin reuptake inhibitors on anhedonia specifically seemed limited, while other approaches including psychotherapy and physical treatments showed potential. [wu-2025-anhedonia]
That is a consequential finding for anyone who has been treated and is still flat. The commonest first-line medication targets serotonin; the systems most implicated in reward and motivation involve dopamine and noradrenaline. A partial response where the sadness lifts and the flatness does not is a recognised pattern rather than a personal failure to respond.
Leftover symptoms are not neutral. Anhedonia is one of the most common residual symptoms after treatment for depression, and residual symptoms are associated with a higher risk of relapse. It is worth reporting rather than accepting as the new baseline.
There is a second possibility to hold alongside it. Some people describe a blunting of positive feeling as a side effect of antidepressants, which looks identical from the inside and needs a different response. Only a conversation with the prescriber can separate them, and that conversation does not happen if the symptom is never named.
Is this what is going on?
Tick anything true over the past fortnight. This is a reflection prompt rather than a test, and it produces no diagnosis.
0 of 7 ticked
The sixth item is the most useful one, because it means the liking is still there and the wanting is what is missing. The last item is the one to lead with if it applies: a partial response where mood improved and flatness did not is a recognised pattern and it changes what is worth trying next.
Flatness comes and goes for most people. What distinguishes this is duration and reach: two weeks or more, across most of what you do, rather than a dull fortnight after a hard month.
Nothing here matched. If low mood rather than flatness is the difficulty, our guide to dealing with depression covers what helps.
The free depression screener uses the PHQ-9, whose first item asks directly about little interest or pleasure in doing things. It takes about two minutes and nothing is sent anywhere.
What helps
Say the specific sentence. “I feel nothing about things I used to enjoy” points somewhere different from “I feel sad”, and the two can lead to different prescriptions. If you have already been treated and the flatness stayed, say that too, because it is the detail that prompts a review.
Act before the motivation arrives. This is the direct implication of the wanting and liking split, and it is what behavioural activation is built on. If the missing component is the motivation to start, waiting until you feel like it means waiting for the broken part to repair itself. Scheduling in advance removes the decision from the moment you least want to make it.
Rate it afterwards, not before. Predicted enjoyment is unreliable in this state and actual enjoyment is often higher. Keeping a record is how the correction gets made, because memory in a low mood does not preserve the good hour.
Start smaller than feels worth doing. Fifteen minutes of something is a test of the hypothesis. An afternoon is a commitment you will cancel.
Ask about the medication rather than stopping it. Both a partial response and emotional blunting are worth raising, and both have options. Neither is a reason to stop taking something without advice. [nice-ng222-anhedonia]
Our guide to how to deal with depression covers the wider picture, and depression subtypes covers how presentations differ and why that changes treatment.
When to seek help
See a GP if the flatness has lasted two weeks or more and covers most of what you do, if you have stopped doing things you used to value, or if you are already being treated for depression and this part has not shifted.
In the UK you can self-refer to NHS talking therapies without going through a GP. Mention anhedonia by name or describe it plainly, because it is the detail most likely to be missed if you only report feeling low.
Go urgently if you have thoughts of harming yourself. In the UK, Samaritans is free on 116 123 at any hour, and you can text SHOUT to 85258.
How MyFreud can help
The belief that nothing is enjoyable any more is built out of memory, and memory in this state keeps the flat days and discards the tolerable ones. MyFreud gives you daily mood tracking that takes seconds, which is how you find out whether the hour you made yourself go was actually as empty as you predicted.
Download MyFreud and start today: App Store or Google Play.