Clinical guide
Mental status examination (MSE)
The mental status examination is a structured description of a person's mental state at the time of assessment. This guide covers the standard domains, how to write one, the descriptive terms clinicians use, and a free template you can download.
What the MSE is
The MSE is to mental health what the physical examination is to general medicine: a systematic snapshot of how a person looks, speaks, thinks, feels and reasons right now. It is descriptive, not diagnostic. A good MSE lets another clinician picture the person clearly and see what has changed since the last review.
It is usually recorded after a clinical interview, drawing on both what you observe and what the person tells you. Keep it concise and behavioural, and record any risk exactly as stated.
The standard MSE domains
| Domain | What to note |
|---|---|
| Appearance and behaviour | Grooming, dress, hygiene, physical state, eye contact, psychomotor activity, level of cooperation and rapport. e.g. well-groomed, dishevelled, good eye contact, restless, psychomotor retardation, cooperative, guarded |
| Speech | Rate, rhythm, volume, tone, quantity and spontaneity, not the content. e.g. normal rate and volume, pressured, slow, soft, monotonous, spontaneous, minimal |
| Mood | The client's own description of their sustained emotional state, ideally in their words. e.g. “low”, “anxious”, “fine”, “angry”, euthymic (reported) |
| Affect | The emotional state you observe: range, intensity, reactivity, congruence with mood and content. e.g. euthymic, blunted, flat, restricted, labile, congruent, reactive, incongruent |
| Thought form (process) | How thoughts are organised and connected, from the flow of speech. e.g. linear and goal-directed, circumstantial, tangential, flight of ideas, loosening of associations |
| Thought content | What the person is thinking about, including any risk. Record risk exactly as stated. e.g. no abnormal content, preoccupations, obsessions, delusions, overvalued ideas, suicidal or homicidal ideation |
| Perception | Disturbances such as hallucinations, illusions, or depersonalisation and derealisation. e.g. no perceptual disturbance, auditory hallucinations, visual hallucinations, illusions, derealisation |
| Cognition | Level of consciousness, orientation, attention and concentration, and memory. Use a formal screen where needed. e.g. alert, oriented to time, place and person, attention intact, memory grossly intact |
| Insight | The person's awareness of their difficulties and of the need for help. e.g. good, partial, limited, absent |
| Judgement | Their capacity to make reasoned decisions, in daily life and in the current situation. e.g. intact, impaired, poor |
How to write an MSE
- 1Observe from the first moment: appearance, behaviour and speech are recorded from how the person presents, not from questions.
- 2Ask about mood in the person's own words, then note the affect you observe and whether it fits the mood and content.
- 3Follow the flow of thought (form), then what they think about (content), always recording any risk exactly as stated.
- 4Check perception and cognition, using a formal screen such as the MMSE or MoCA where cognition is a question.
- 5Close with insight and judgement, then review the whole MSE before it enters the record.
A worked example
A full MSE for a person with no acute findings, written domain by domain, so you can see how each section reads in practice. It is an illustrative teaching example, not a real client and not something to copy verbatim.
Appearance and behaviour: A woman appearing her stated age, well-groomed and dressed appropriately. Good eye contact, settled posture, no abnormal movements. Cooperative and engaged throughout.
Speech: Normal rate, rhythm and volume. Spontaneous, coherent and easy to follow.
Mood: “A bit stressed, but okay.”
Affect: Euthymic, full range, reactive and congruent with mood and content.
Thought form (process): Linear and goal-directed.
Thought content: Preoccupied with work deadlines. No delusions, obsessions or overvalued ideas. No suicidal or homicidal ideation elicited.
Perception: No hallucinations, illusions or dissociative symptoms reported or observed.
Cognition: Alert and oriented to time, place and person. Attention and concentration intact; memory grossly intact.
Insight: Good. Recognises the difficulties as stress-related and is open to support.
Judgement: Intact.
In a presentation with findings, the same headings carry them: speech might be “slow and softly spoken”, affect “blunted and incongruent with content”, thought form “circumstantial”, or perception “second-person auditory hallucinations”. Any risk is recorded in the person's own words and assessed separately, never summarised away.
Free MSE template
A blank scaffold with every domain, ready to fill in. Download it to keep, or draft a full MSE from your de-identified observations with the AI MSE note writer.
MSE vs MMSE
The two are often confused. The mental status examination (MSE) is the broad, structured description of the whole mental state described above. The Mini-Mental State Examination (MMSE) is a short, 30-point screening test of cognition only. The MMSE, or an alternative such as the MoCA, can sit inside the cognition section of a full MSE. Read the MMSE overview.
Frequently asked questions
A structured description of a person's mental state at the time of assessment, across appearance and behaviour, speech, mood, affect, thought form and content, perception, cognition, insight and judgement. It is the mental-health equivalent of a physical examination.
The MSE is a broad, structured observation of the whole mental state. The MMSE (Mini-Mental State Examination) is a short 30-point test of cognition only, which can form part of the cognition section of an MSE.
The standard domains are appearance and behaviour, speech, mood, affect, thought form, thought content (including risk), perception, cognition, insight and judgement.
Yes. You can download a blank MSE template from this page, and use the free AI MSE note writer to structure your de-identified observations into a full MSE.
Yes. This page includes a full worked example of an MSE for a person with no acute findings, written domain by domain, so you can see how each section reads in practice. It is a teaching example, not a real client.
Most versions use ten: appearance and behaviour, speech, mood, affect, thought form, thought content, perception, cognition, insight and judgement. Some texts combine or split a few, so you may see between eight and eleven headings.
Mood is the sustained emotional state the person reports, ideally in their own words. Affect is the emotional expression you observe from moment to moment, including its range, intensity and whether it fits the mood and content.
It is both. Appearance, behaviour, speech and affect are observed objectively; mood is the person's own report; insight and judgement are clinical inferences. A good MSE keeps these sources distinct.
Both terms refer to the same assessment. 'Mental status examination' is more common in North America and 'mental state examination' in the UK and Commonwealth; the abbreviation MSE is used for either.
References
- Mental status examination (overview) (Wikipedia)
- Mental status examination (definition) (APA Dictionary of Psychology)
- Mental Status Examination (Voss and Das) (StatPearls, NCBI Bookshelf)
This guide is educational information for professionals, not clinical or legal advice. An MSE is a scaffold for your own assessment, not a diagnosis. Never paste identifiable client data into a general AI assistant. If a client is in crisis, contact a crisis helpline right away.