If you think they may be experiencing mania or severe depression, seek an urgent specialist mental-health assessment. Contact their team, ask for an urgent GP appointment, or use urgent mental-health help. Do not wait for agreement about a diagnosis. Call 999 if there is immediate danger.[1]
Are they under 18? This page focuses on supporting an adult. Start with support for children and teenagers. If you are under 18 and supporting someone else, see young-carer rights and support.
Choose the route
Their existing mental-health team
Use the care coordinator, community team or crisis contact in their care plan. Tell them what has changed and how quickly.
Their GP
A GP can assess what is happening, consider other causes and refer to mental-health services where appropriate.
Urgent mental-health help
You do not need to know their GP. In England, call 111 and select the mental-health option. A concerned friend or family member can call on someone else's behalf. Routes differ across the UK, so use the site's urgent page to find the correct national service.[2]
Prepare the useful information
- Say what has changed. Include sleep, speech, activity, spending, mood, unusual beliefs and day-to-day functioning where relevant.
- Say when it started. Explain whether the change is steady, sudden or becoming more intense.
- Name immediate risks. Mention suicidal thoughts, self-harm, threats, unsafe driving, going missing or an inability to meet basic needs.
- Include what they have agreed. Bring their crisis plan, care-plan contacts and any preferences they have written down.
These notes describe observations. They do not require you to diagnose the episode yourself.[3]
How you can help with an appointment
Ask what role they want you to have. Bipolar UK suggests practical help such as transport, collecting prescriptions or attending appointments if the person would like you there.
You could help make the appointment, prepare notes, wait outside or attend and describe agreed observations. Let the person speak for themselves where they can.[4]
Medication questions belong with a professional
Do not change, stop or restart someone's medication for them. For side effects, missed doses, interactions or questions about lithium, contact the prescriber, mental-health team or pharmacist. If help cannot wait, use the urgent route for their UK nation or emergency services as directed by the official medicine information.
Sources and how this guide was written
Opening advice
NICE CG185: when urgent specialist assessment is needed (recommendation 1.2.2).Urgent mental-health help
NHS bipolar information, NHS urgent help and Bipolar UK support information.Prepare the useful information
Mind and Bipolar UK recommend learning warning signs and planning support together. NHS sets out the urgent and emergency thresholds.How you can help with an appointment
Bipolar UK: practical ways to support someone.Medication questions belong with a professional
NHS medicine guidance and NICE guideline CG185.
Last full source check: 26 August 2026
Consent and seeking advice wording checked: 7 October 2026. Sources and explanation.
Later checks: Help-route wording checked: 1 October 2026.
Independent information, not a medical or crisis service. This guidance has not been clinically reviewed. How we use sources.
← Bipolar overview