Red flag symptoms

This page provides quick summaries of alert signs and symptoms that indicate a more serious underlying pathology. Look out for the red flag symptoms of back and neck pain, chest pain, headaches and other common presentations in primary care.

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Red flag symptoms: Dizziness

Eye pain - red flag symptoms

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Red flag symptoms: Breast lumps

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Red flag symptoms: Vomiting in children, assessment and possible causes

Abnormal vaginal discharge - red flag symptoms
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Abnormal vaginal discharge - red flag symptoms

Red flag symptoms in patients with vaginal discharge, including possible causes and...

Fever in children - red flag symptoms

Fever in children - red flag symptoms

Red flag symptoms to look out for in a child presenting with pyrexia of unknown origin....

Red flag symptoms: Abdominal pain
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Red flag symptoms: Abdominal pain

Identifying potentially serious causes of abdominal pain.

Loss of appetite - red flag symptoms
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Loss of appetite - red flag symptoms

Red flags in patients with loss of appetite, possible causes and further investigations...

Red flag symptoms: Breathlessness, investigations and when to refer

Red flag symptoms: Breathlessness, investigations and when to refer

Red flags to be aware of in patients presenting with breathlessness, possible causes...

Bone pain - red flag symptoms

Bone pain - red flag symptoms

How to identify red flags in patients presenting with bone pain, including conducting...

Neck pain - red flag symptoms
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Neck pain - red flag symptoms

The signs and symptoms of potentially serious pathology in patients presenting with...

Fever in adults - red flag symptoms
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Fever in adults - red flag symptoms

Fever in adults can have potentially serious causes, ranging from sepsis to malignancy....

Red flag symptoms: Diarrhoea, investigations and when to refer

Red flag symptoms: Diarrhoea, investigations and when to refer

Treatment depends on the patient's age and the timeline of events.

Red flag symptoms: Tired all the time
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Red flag symptoms: Tired all the time

Red flag symptoms, appropriate investigations in primary care, how to rule out serious...

Red flag symptoms: Arrhythmias

Red flag symptoms: Arrhythmias

An overview of the red flags in cases of arrhythmias, suitable primary care investigations...

Unintentional weight gain - red flag symptoms

Unintentional weight gain - red flag symptoms

Recognising red flags in cases of unintentional weight gain, with advice on questions...

Night sweats - red flag symptoms
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Night sweats - red flag symptoms

Possible causes of night sweats, including questions to ask during consultations...

Postcoital bleeding - red flag symptoms
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Postcoital bleeding - red flag symptoms

Postcoital bleeding may have a serious cause. Dr Pipin Singh explores questions to...

Changing moles - red flag symptoms
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Changing moles - red flag symptoms

An overview of red flag symptoms to consider when assessing changing moles, including...

Red flag symptoms: Hoarse voice
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Red flag symptoms: Hoarse voice

An overview of the red flags of hoarse voice, inlcuding recognising potential causes...

Red flag symptoms: Haemoptysis

Red flag symptoms: Haemoptysis

Possible causes of haemoptysis, advice on examinations and investigations and when...

Red flag symptoms - Groin swelling
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Red flag symptoms - Groin swelling

Signs and symptoms of potentially serious pathology in patients presenting with groin...