Signs You May Need to Go to a Mental Hospital in the UK: A Complete Guide


Understanding when mental health symptoms require hospital admission, your rights under the Mental Health Act, and how to access crisis support in the UK.
> If you are in immediate danger or having thoughts of suicide, please call 999 or go to your nearest A&E. You can also call Samaritans free on 116 123, available 24 hours a day, 7 days a week.
Recognising when mental health symptoms have become severe enough to require hospital treatment is one of the most difficult decisions a person or their loved ones can face. This guide explains the warning signs that may indicate psychiatric hospital admission is needed, how the process works in the UK, and what support is available.
Most people experiencing mental health difficulties are treated successfully in the community through their GP, community mental health teams, or crisis services. Hospital admission is typically reserved for situations where symptoms cannot be safely managed at home, or when there is a significant risk to the person or others.
Crisis Support Lines
If you or someone you know is struggling, these services are available around the clock:
- Samaritans: 116 123 (free, 24/7) or email jo@samaritans.org
- NHS 111: Press option 2 for mental health crisis support
- Shout Crisis Text Line: Text "SHOUT" to 85258
- CALM (Campaign Against Living Miserably): 0800 58 58 58 (5pm-midnight)
- Papyrus (for under 35s): 0800 068 4141
- Childline (for under 19s): 0800 1111
Key Information
- Most admissions are voluntary: The majority of people in psychiatric hospitals have agreed to be there
- Hospital is not always the answer: Many crises can be managed at home with crisis team support
- You have rights: Even if detained, you have legal protections and can appeal
- Treatment works: Psychiatric hospital stays are usually short-term, with the aim of stabilising symptoms
10 Warning Signs That May Indicate Hospital Admission Is Needed
The following signs may indicate that someone needs more intensive support than can be provided at home. Not everyone experiencing these symptoms will need hospital admission, but they warrant urgent professional assessment.
1. Active Suicidal Intent or Plans
If someone has moved beyond thoughts of suicide to making specific plans or taking preparatory actions, this constitutes a medical emergency. This includes stockpiling medication, writing suicide notes, giving away possessions, or researching methods. Immediate help should be sought by calling 999 or going to A&E.
2. Serious Self-Harm Requiring Medical Attention
While many people who self-harm manage their mental health in the community, self-harm that causes significant physical injury, or self-harm that is escalating in severity, may require hospital-based treatment. This is particularly true if someone is unable to keep themselves safe between self-harm episodes.
3. Psychotic Symptoms Affecting Safety
Experiencing hallucinations (hearing voices or seeing things others cannot) or delusions (fixed false beliefs) does not automatically require hospitalisation. However, if these symptoms are causing someone to act in ways that put themselves or others at risk, such as responding to command hallucinations or acting on paranoid beliefs, hospital admission may be necessary.
4. Severe Manic Episodes
During a manic episode, someone may not recognise they are unwell. Signs that may indicate hospitalisation is needed include: not sleeping for days, engaging in extremely risky behaviour (spending life savings, dangerous activities), severe agitation, or symptoms progressing despite community treatment.
5. Inability to Care for Basic Needs
When mental illness prevents someone from eating, drinking, sleeping, or attending to basic hygiene for extended periods, this severe self-neglect can become life-threatening. If community support has not been able to address these concerns, hospital admission may be needed for stabilisation.
6. Significant Risk to Others
If someone's mental health symptoms are causing them to behave in ways that pose a genuine risk of harm to other people, including family members, hospital admission may be required both for treatment and for public protection. This is distinct from general feelings of anger or frustration.
7. Failure of Community Treatment
Sometimes symptoms continue to worsen despite maximum support from crisis teams, community mental health services, and outpatient care. When all less restrictive options have been tried and the person remains severely unwell, hospital may provide the intensive treatment needed.
8. Medication Changes Requiring Close Monitoring
Certain medication changes, particularly starting or switching antipsychotic medication, or treatments like electroconvulsive therapy (ECT), may require hospital admission for close medical monitoring, even if the person is otherwise stable.
9. Dual Diagnosis Requiring Specialist Care
When severe mental illness occurs alongside substance dependence requiring medical detoxification, hospital admission may be needed to safely manage both conditions simultaneously. Withdrawal from alcohol or certain drugs can be medically dangerous.
10. Loss of Capacity to Make Decisions About Care
If someone's mental illness has temporarily affected their ability to understand, retain, or weigh information about their treatment needs, hospital admission may be necessary while their capacity is impaired. This is assessed on a decision-specific basis.
Voluntary vs Involuntary Admission
Understanding the difference between these two routes to hospital is important for patients and families.
Voluntary (Informal) Admission
Most people in psychiatric hospitals are informal or voluntary patients. This means they have agreed to admission and can, in principle, leave if they wish. As a voluntary patient:
- You have consented to be in hospital
- You can generally leave when you want (though staff may ask you to stay)
- Treatment requires your consent
- You are not detained under the Mental Health Act
If you feel you need hospital treatment, you can:
- Contact your GP or community mental health team
- Call your local NHS urgent mental health helpline (find yours at nhs.uk)
- Go to A&E if you are in crisis
- Call 111 and select the mental health option
Being a voluntary patient does not mean you are trapped. However, if you try to leave and staff believe you are at serious risk, they may initiate an assessment for detention under the Mental Health Act.
Involuntary (Sectioned) Admission
Being "sectioned" means being detained in hospital under the Mental Health Act 1983, even without your consent. This can only happen if:
1. You have a mental disorder of a nature or degree that warrants hospital treatment 2. Treatment is necessary for your health or safety, or for the protection of others 3. Appropriate treatment is available 4. You are unwilling or unable to consent to admission
Different sections of the Mental Health Act serve different purposes:
| Section | Purpose | Duration | Who Applies |
|---|---|---|---|
| Section 2 | Assessment | Up to 28 days | 2 doctors + AMHP |
| Section 3 | Treatment | Up to 6 months (renewable) | 2 doctors + AMHP |
| Section 4 | Emergency | Up to 72 hours | 1 doctor + AMHP |
| Section 136 | Police powers | Up to 24 hours (extendable to 36) | Police officer |
| Section 5(2) | Holding power (doctors) | Up to 72 hours | Doctor in charge |
| Section 5(4) | Holding power (nurses) | Up to 6 hours | Registered nurse |
An Approved Mental Health Professional (AMHP) is usually a specially trained social worker who coordinates the assessment and makes the application for detention.
What Happens If You Go to A&E for Mental Health
Going to A&E for a mental health emergency is a valid use of emergency services. Here is what to expect:
On arrival, you will register at reception and explain you are there for a mental health crisis. You will be triaged (assessed for urgency) and may wait in a dedicated mental health area if available.
Assessment will be conducted by the liaison psychiatry team or a mental health professional. They will ask about your symptoms, any current treatment, whether you feel safe, and what support you have at home.
Possible outcomes include:
- Referral to a crisis team for home-based support
- Admission to a psychiatric ward (voluntary or under section)
- Advice and a plan to follow up with your GP or mental health team
- Treatment for any physical health needs and discharge with a safety plan
You cannot be turned away from A&E before being assessed. However, going to A&E does not guarantee hospital admission. If professionals believe you can be safely treated at home with appropriate support, you may not be admitted.
What to Expect in a Psychiatric Hospital
If you are admitted to hospital, whether voluntarily or under section, here is what typically happens:
The First 72 Hours
On arrival, staff will:
- Explain where you are and the ward routines
- Conduct a comprehensive assessment of your mental and physical health
- Take your belongings for safekeeping (you can usually keep some personal items)
- Assign you to a named nurse and consultant psychiatrist
- Explain your rights, particularly if you are detained
If detained, you will be given written information about your legal rights and should be offered an Independent Mental Health Advocate (IMHA) to support you.
Daily Life
Psychiatric wards vary, but typically include:
- Scheduled meal times and visiting hours
- Ward rounds where your care is reviewed (usually weekly)
- Access to outdoor space and activities
- Talking therapies and occupational therapy
- Medication reviews and adjustments
- One-to-one time with nursing staff
You can usually wear your own clothes, keep your mobile phone (with some restrictions on locked wards), and have visitors. Different wards have different rules, so ask staff what applies to your ward.
Length of Stay
There is no standard length of stay. Some people are in hospital for days, others for weeks or months. The aim is always to discharge you as soon as it is safe to do so, with appropriate community support in place.
Discharge Planning
Before you leave, there should be a discharge meeting involving:
- You and your family (if you want them involved)
- Ward staff
- Community mental health team
- Social workers or care coordinators
A discharge plan should cover medication, follow-up appointments, crisis contacts, and any support you need at home.
Your Rights as a Patient
Whether voluntary or detained, you have important rights:
If You Are a Voluntary Patient
- You can refuse treatment (though staff will explain why they think treatment is needed)
- You can leave the hospital (though staff may ask you to stay)
- You cannot be forced to take medication
- You can make decisions about who visits you
If You Are Detained
- You must be given written information about your rights
- You have the right to appeal to a Mental Health Tribunal
- You are entitled to free legal representation
- You can access an Independent Mental Health Advocate (IMHA)
- Your nearest relative has certain powers and rights
- Treatment for mental disorder can be given without your consent, but there are safeguards
- After 3 months, a Second Opinion Appointed Doctor (SOAD) must approve ongoing medication if you are refusing or unable to consent
How to Appeal Against Detention
If you are detained and believe you should not be, you can:
1. Apply to the Mental Health Tribunal: An independent panel including a judge, a psychiatrist, and a lay member will hear your case. You are entitled to free legal representation.
2. Ask your nearest relative to discharge you: Your nearest relative can apply for your discharge, though the hospital can block this if the responsible clinician believes you remain a risk.
3. Request a hospital managers' hearing: The hospital managers can also review your detention.
For Section 2, you must apply to the tribunal within the first 14 days. For Section 3, you can apply within the first 6 months, then each time your section is renewed.
Supporting a Loved One
If someone you care about is showing signs of needing hospital treatment:
In an emergency, call 999 if there is immediate risk to life. Do not try to manage a crisis alone.
For urgent but not emergency situations, contact their GP, mental health team, or the NHS urgent mental health helpline. You can request a Mental Health Act assessment through the local Approved Mental Health Professional service.
If they are admitted, you can visit (check ward hours), bring personal items, and ask to be involved in care planning if your loved one agrees. Even without their consent, staff may still speak to you about general information and support available to you as a carer.
Look after yourself too. Supporting someone through a mental health crisis is exhausting. Carers UK (0808 808 7777) and Rethink Mental Illness have resources specifically for carers.
Crisis Alternatives
Hospital is not always the best option. Many areas now have crisis alternatives that may be more appropriate:
- Crisis houses: Residential alternatives to hospital with 24-hour support
- Crisis cafes and safe havens: Places to go when struggling, with peer support
- Crisis teams (CRHTs): Intensive home treatment as an alternative to admission
- Psychiatric decision units: Short-stay units for assessment and stabilisation
Ask your local NHS trust what crisis alternatives are available in your area.
Methodology
This article draws on guidance and information from:
- NHS England mental health crisis care policy
- The Mental Health Act 1983 and Code of Practice
- Care Quality Commission guidance for detained patients
- Royal College of Psychiatrists patient information
- Mind and Rethink Mental Illness published resources
- NHS Digital Mental Health Act statistics
All information is current as of December 2025. Mental health law and services may change, so always check with official sources for the most up-to-date information.
Sources
20 SourcesGovernment and NHS Sources
2022
- Comprehensive overview of detention, patient rights, and the sectioning process
2024
- Policy on 24/7 crisis services, crisis alternatives, and NHS Long Term Plan commitments
July 2025
- Official statistics on detentions under the Mental Health Act
2015
- Statutory guidance on how the Mental Health Act should be applied
- Patient rights information from the regulator
Charity and Third Sector Sources
December 2025
- Detailed guide to A&E for mental health, voluntary and involuntary admission
- Comprehensive information on being detained under the Mental Health Act
2024
- Practical information on voluntary and compulsory admission, ward life
2025
- Crisis support service information, available 24/7 on 116 123
2015
- Expert guidance on detention, rights, and the appeal process
Clinical and Professional Sources
2017
- Clinical guidance on crisis care pathways
- Clinical overview of Mental Health Act detention criteria
- Best practice guidance for acute mental health services
2024
- Guidance on therapeutic inpatient care
Legal and Regulatory Sources
- The primary legislation governing mental health detention in England and Wales
- Information on how to appeal against detention
- Human rights guidance for detained patients
Support Services
- Text SHOUT to 85258 for free, confidential support
Campaign Against Living Miserably
- Support for men struggling with mental health, helpline 0800 58 58 58
- Support for under 35s, helpline 0800 068 4141
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