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A-Z of conditions we treat


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Attention Deficit Hyperactivity Disorder (ADHD) is a group of behavioural symptoms that include inattentiveness, hyperactivity and impulsiveness. Attention deficit disorder (ADD) is a type of ADHD.  It affects between 3 per cent and 9 per cent of school age children in the UK.

Sussex Partnership provides support to young people and families with ADHD through our community teams. 

Read more about ADHD on NHS Choices

Where we treat this condition

Alcohol misuse

Regularly drinking alcohol, like smoking cigarettes or using drugs,  changes the way a person feels, both mentally and physically. Some people enjoy these feelings and have a strong desire to repeat them. Some people do this without having any major problems. However, for other people, their behaviour causes damaging physical and psychological effects as their habit turns into an addiction.

Sussex Partnership provides community alcohol services in Brighton in partnership with CRi.

Read more about alcohol addiction on NHS Choices

Where we treat this condition


Anorexia nervosa is an eating disorder and  mental health condition which can be life-threatening.  It affects mainly young people. 

People with anorexia try to keep their weight as low as possible, usually by restricting the amount of food they eat. They often have a distorted image of themselves, thinking that they're fat when they're not. 

Sussex Partnership provides specialist help for people to recover from anorexia. 

Read more about anorexia on NHS Choices

Where we treat this condition



Anxiety is a feeling of unease, such as worry or fear, that can be mild or severe.

Everyone has feelings of anxiety at some point in their life. For example, you may feel worried and anxious about sitting an exam or having a medical test or job interview.

Feeling anxious is sometimes perfectly normal. However, people with generalised anxiety disorder (GAD) find it hard to control their worries. Their feelings of anxiety are more constant and often affect their daily life.

Sussex Partnership provides talking therapies to help people with anxiety in our primary care and wellbeing services. 

Read more about anxiety on NHS Choices

Where we treat this condition


Autism and Asperger's

Autism and Asperger syndrome are both part of a range of related developmental disorders known as autistic spectrum disorders (ASD). They begin in childhood and last through adulthood.

ASD can cause a wide range of symptoms, which are grouped into three categories:

  • Problems and difficulties with social interaction – including lack of understanding and awareness of other people's emotions and feelings
  • Impaired language and communication skills – including delayed language development and an inability to start conversations or take part in them properly
  • Unusual patterns of thought and physical behaviour – including making repetitive physical movements, such as hand tapping or twisting (the child develops set routines of behaviour and can get upset if the routines are broken).

Read more about ASD on NHS Choices

Where we treat this condition


Bipolar disorder

Bipolar disorder – known in the past as manic depression – is a condition that affects your moods, which can swing from one extreme to another.

If you have bipolar disorder, you will have periods or 'episodes' of:

  • Depression – where you feel very low and lethargic
  • Mania – where you feel very high and overactive (less severe mania is known as hypomania).

The symptoms of bipolar disorder depend on which mood you are experiencing. Unlike simple mood swings, each extreme episode of bipolar disorder can last for several weeks or longer, and some people may not experience a 'normal' mood very often.

In Sussex Partnership we support people with bi-polar disorder in our adult mental health services

Read more about bipolar disorder on NHS Choices

Where we treat this condition



Dementia is a group of symptoms caused by specific brain disorders. The most common cause is Alzheimer’s disease, but it can also be the result of a stroke or mini-strokes or other conditions.

Dementia can affect adults of all ages but is much rarer in people under the age of 65. It is a progressive disease, which causes memory loss, mood changes, difficulties with communication and reasoning, and eventually problems with everyday tasks.

It can happen to anyone and there is currently no cure, but treatments can slow the progression of symptoms.

An early diagnosis can help people get the right treatment and support to live well with dementia, and help those close to them to prepare and plan for the future

Read more about dementia on NHS Choices

Where we treat this condition


Depression is more than simply feeling unhappy or fed up for a few days. Depression is a real illness with real symptoms, and it's not a sign of weakness or something you can 'snap out of' by 'pulling yourself together'.

The good news is that with the right treatment and support, most people can make a full recovery from depression.

Sussex Partnership provides a range of support for people with depression.

Read more about depression on NHS Choices

Where we treat this condition

Adult Mental Health Services

Health In Mind

Brighton and Hove Wellbeing Service


Eating disorder

Eating disorders are characterised by an abnormal attitude towards food that causes someone to change their eating habits and behaviour.

A person with an eating disorder may focus excessively on their weight and shape, leading them to make unhealthy choices about food with damaging results to their health.

Eating disorders include a range of conditions that can affect someone physically, psychologically and socially. The most common eating disorders are: 

  • Anorexia nervosa, when someone tries to keep their weight as low as possible, for example by starving themselves or exercising excessively
  • Bulimia, when someone tries to control their weight by binge eating and then deliberately being sick or using laxatives (medication to help empty their bowels)
  • Binge eating, when someone feels compelled to overeat.

Where we treat this condition

West Sussex Family Eating Disorder Service, Chalkhill, Haywards Heath

East Sussex CAMHS Community Teams

Specialist Adult Eating Disorder Service (provided through Adult Mental Health Services)

Enduring or long term mental health conditions

Most people are able to live independently, with support, but some find this difficult.  They may need a greater level of care and treatment in a more sheltered environment before moving out into the community.

Sussex Partnership provides services to this group through a range of housing and hospital facilities offering varying levels of support.    

Where we treat this condition

Bramble Lodge intensive rehabilitation unit, St Leonards on Sea

Recovery Support House, Osmond Road, Hove

Recovery Support House, Westbourne Gardens, Hove

Recovery Support House, Windlesham Road, Brighton

Recovery Support House, Withdean Road, Brighton

Amberstone Rehabilitation Unit, Hailsham

Kendal House, Specialist Recovery and Rehabilitation Service, Worthing

Regnum Cottages, Chichester

Connolly House Rehabilitation and Recovery Team, Chichester



Hoarding is characterised by a difficulty in making decisions about what to keep and what to throw away. People usually have strong beliefs around the value of the items being kept. People with a hoarding problem tend to avoid throwing things away, and may experience a high level of distress or anxiety. Some people have such a difficulty with collecting items, or hoarding, that their belongings begin to take over their living space. People with hoarding problems will continue to buy, collect or ‘rescue’ items from disposal, despite increasing difficulties using their home due to the number of possessions.

Hoarding has consequences not just for the person who may not be able to use their home properly but also for those who live with someone who hoards. Hoarding can cause significant distress to relatives, particularly if the person themselves does not see that it is a problem, or if they feel too embarrassed to look for help or treatment.

Services that help can be provided by our Adult Mental Health Services.

Click here for some helpful information.


Learning Disabilities

A learning disability affects the way a person learns new things in any area of life, not just at school. It affects the way they understand information and how they communicate. Around 1.5 million people in the UK have a learning disability. This means they can have difficulty:

  • Understanding new or complex information
  • Learning new skills, and 
  • Coping independently.

Our community teams support people who have complex emotional and behavioural needs, including challenging behaviour and mental illness and who may also additional physical health conditions and or postural and mobility problems.   

Our inpatient assessment and treatment unit offers a national service to support people who have the most complex needs.  

Read more about learning disabilities on NHS Choices

Where we treat this condition



Neuropsychiatric conditions include medically unexplained symptoms such as weakness, unusual movement and non-epileptic seizures, an established neurological disease (such as Parkinson’s or epilepsy) that is complicated by psychiatric symptoms (such as psychosis or personality disorder) or arising from an acquired brain injury (perhaps after a road accident).

Sussex Partnership offers highly specialist support to the NHS to support people with these conditions.

Where we treat this condition

Princess Royal Hospital, Haywards Heath


Sometimes people need psychological support to help them manage a neurological condition such as a stroke, head injury, MS or Parkinson’s disease.

Sussex Partnership offers specialist assessment and treatment for this group of people, including clinics which take referrals direct from hospital teams.

Where we treat this condition

Specialist clinics for Adur Arun Worthing, and for Hastings and Rother


Obsessive compulsive disorder

Obsessive compulsive disorder (OCD) is a chronic (long-term) mental health condition that is usually associated with obsessive thoughts and compulsive behaviour.

An obsession is an unwanted, unpleasant thought, image or urge that repeatedly enters a person’s mind and results in anxiety. A compulsion is a repetitive behaviour or mental act that a person feels compelled to perform to try to avert or undo the effect of the obsession.

OCD is one of the most common mental health conditions. It is estimated that up to 3 in 100 adults and up to 5 in 100 children and teenagers have OCD.

Sussex Partnership provides a range of services for people with OCD.

Read more about OCD on NHS Choices

Where we treat this condition

Adult Mental Health Services

Health In Mind

OCD Clinic

Brighton and Hove Wellbeing Service

Offending behaviour 

For some people, their mental health problems put them at risk of offending or bring them into conflict with the criminal justice system.

Sussex Partnership has a range of services to take people with mental health issues out of the criminal justice system where possible, support them to manage their wellbeing and, where appropriate, provide a safe and secure inpatient environment.

We also provide healthcare to the prison service.

Where we treat this condition


Personality disorder

Personality disorders are mental health conditions that affect how people manage their feelings and how they relate to other people.

Disturbances of feeling and distorted beliefs about other people can lead to odd behaviour, which can be distressing and which other people may find upsetting.

Sussex Partnership provides a range of service to support people with personality disorder including  STEPPS.  This is a skills training programme developed for people who have features of Borderline Personality Disorder or Emotional Intensity Disorder which uses the techniques of cognitive behavioural therapy.  Through STEPPS people with a diagnosis of personality disorder can learn how to manage their own mental wellbeing.

Read more about personality disorders on NHS Choices

Where we treat this condition

Adult Mental health Services

Bluebell House Recovery Support Centre, Burgess Hill


A phobia is more than a simple fear. It develops when a person begins to organise their life around avoiding the thing they are afraid of, whether it’s an animal, object, place or situation.

A phobia is a type of anxiety disorder. If you have a phobia, you will have an overwhelming need to avoid all contact with the source of your anxiety. Coming into contact with the cause of your phobia or even the thought of this can make you anxious and may cause you to panic.

Sussex Partnership provides talking therapies to help people with phobias in our primary care and wellbeing services.

Read more about phobias on NHS Choices

Where we treat this condition

Health In Mind, East Sussex

Brighton and Hove Wellbeing Service

Post traumatic stress disorder

Post-traumatic stress disorder (PTSD) is an anxiety disorder caused by very stressful, frightening or distressing events.

The type of events that can cause PTSD include:

  • Military combat
  • Serious road accidents
  • Terrorist attacks
  • Natural disasters, such as severe floods, earthquakes or tsunamis
  • Being held hostage
  • Witnessing violent deaths
  • Violent personal assaults, such as sexual assault, mugging or robbery.

PTSD can develop immediately after someone experiences a disturbing event or it can occur weeks, months or even years later.

PTSD can develop in any situation where a person feels extreme fear, horror or helplessness. However, it doesn't usually develop after situations that are simply upsetting, such as divorce, job loss or failing exams.

Sussex Partnership provides talking therapies to help people with PTSD in our primary care and wellbeing services. 

Read more about PTSD on NHS Choices

Where we treat this condition

Health In Mind, East Sussex

Brighton and Hove Wellbeing Service

Post-natal depression

Postnatal depression is a type of depression some women experience after they have had a baby.

It usually develops in the first four to six weeks after childbirth, although in some cases it may not develop for several months.

There are many symptoms of postnatal depression, such as low mood, feeling unable to cope and difficulty sleeping, but many women are not aware they have the condition.

It's common to experience mood changes, irritability and episodes of tearfulness after birth – the so-called baby blues. These normally clear up within a few weeks. But if a woman experiences persistent symptoms, it could well be the result of postnatal depression.

It is important for partners, family and friends to recognise signs of postnatal depression as early as possible and seek professional advice.

Read more about postnatal depression on NHS Choices

Where we treat this condition

Arun House, Liverpool Gardens, Worthing

Chapel Street Clinic, Chichester

New Park House, Horsham

Cavendish House, Hastings

Mill View Hospital, Hove


Psychosis is a condition that affects a person’s mind and causes changes to the way that they think, feel and behave. A person who experiences psychosis may be unable to distinguish between reality and their imagination.

People who are experiencing psychosis are sometimes referred to as psychotic. They may have:

  •  Hallucinations – where you see or hear things that are not there
  • Delusions – where you believe things that are untruePsychosis is not a condition in itself, it is a symptom of other conditions. The most common cause of psychosis is a mental health condition, such as schizophrenia or bipolar disorder (manic depression).

Psychosis can also be triggered by physical conditions, such as Parkinson's disease, or as a result of drug or alcohol misuse.

Sussex Partnership has specialist teams who support people who are experiencing their first episode of psychosis.  By starting early these teams can often help people to recover and manage their mental wellbeing. 

We also support people through our adult mental health services and through rehabilitation services for those who have long-term mental health issues.

Read more about psychosis on NHS Choices

Where we treat this condition

Adult Mental health Services

Arun House, Liverpool Gardens, Worthing

New Park House, Horsham



Schizophrenia is a long-term mental health condition that causes a range of different psychological symptoms.

The exact cause of schizophrenia is unknown. However, most experts believe that the condition is caused by a combination of genetic and environmental factors.

Schizophrenia is one of the most common serious mental health conditions. The 2000 National Survey of Psychiatric Morbidity in the UK found that 5 in 1000 people experienced a psychotic disorder (including schizophrenia and manic depression). Men and women are equally affected by the condition.

In men, schizophrenia usually begins between the ages of 15 and 30. In women, schizophrenia usually occurs later, beginning between the ages of 25 and 30.

Read more about schizophrenia on NHS Choices

Where we treat this condition

Adult Mental health Services


Self-harm is when somebody intentionally damages or injures their body. It is a way of expressing deep emotional feelings such as low self-esteem, or a way of coping with traumatic events, such as the death of a loved one.

Self-harm is an expression of personal distress, rather than an illness, although it can be linked to other mental health conditions such as depression.

Research has suggested that self-harm is most common among 15-19-year-olds, and those suffering from anxiety and depression.

Read more about self-harm on NHS Choices

Where we treat this condition

Adult Mental health Services

Assessment and treatment Service (CAMHS), Horsham


Stress is the feeling of being under too much mental or emotional pressure.

Pressure turns into stress when you feel unable to cope. People have different ways of reacting to stress, so a situation that feels stressful to one person may in fact be motivating to another.

Many of life’s demands can cause stress, particularly work, relationships and money problems. And, when you feel stressed, it can affect everything you do.

Sussex Partnership provides talking therapies to help people with PTSD in our primary care and wellbeing services. 

Read more about stress on NHS Choices

Where we treat this condition

Health In Mind, East Sussex

Brighton and Hove Wellbeing Service

Substance misuse

For some people, what starts as recreational use of alcohol or other substances can become risky and dangerous as their behaviour causes damaging physical and psychological effects.

Sussex Partnership has a national track record of success in supporting people who misuse substances.

Read more about drugs and substance misuse on NHS Choices

Where we treat this condition