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: Arrhythmias

Unintentional weight gain - red flag symptoms

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Night sweats - red flag symptoms

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Postcoital bleeding - red flag symptoms

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...

Acute pelvic pain - red flag symptoms

Acute pelvic pain - red flag symptoms

An overview of the causes of pelvic pain in both men and women and indications for...

Red flag symptoms: Cervical lymphadenopathy
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Red flag symptoms: Cervical lymphadenopathy

History and examination will help to diagnose a potentially serious condition.

Tingling - red flag symptoms

Tingling - red flag symptoms

Red flag symptoms in patients with tingling, how a good history can help identify...

Facial pain - red flag symptoms

Facial pain - red flag symptoms

Red flag symptoms in facial pain and possible causes. With advice on key questions...

Chest pain - Red flag symptoms
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Chest pain - Red flag symptoms

Causes and management of chest pain in primary care and red flag symptoms that should...

Red flag symptoms: Diplopia
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Red flag symptoms: Diplopia

Red flag symptoms in presentations of double vision (diplopia), possible causes and...

Red flag symptoms: Heavy menstrual bleeding

Red flag symptoms: Heavy menstrual bleeding

Red flags associated with menorrhagia and when urgent referral is required.

Red flag symptoms: Vomiting in adults

Red flag symptoms: Vomiting in adults

Red flag symptoms associated with vomiting in adults that may indicate a serious...

Red flag symptoms: Pharyngitis

Red flag symptoms: Pharyngitis

Significant pathologies need to be considered in some cases.

Red flag symptoms: Amenorrhoea
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Red flag symptoms: Amenorrhoea

Know how to reveal an serious cause of amenorrhoea and when to refer. By Dr Harry...

Red flag symptoms: Delirium

Red flag symptoms: Delirium

A carer's account is valuable when assessing the acutely confused.

Red flag symptoms: Dysphagia

Red flag symptoms: Dysphagia

Differentiate a harmless sensation from a serious condition.

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

Consider a rare cause if the symptoms are atypical or progressive and the patient...

Red flag symptoms: Blurred vision
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Red flag symptoms: Blurred vision

It is essential to understand what the patient means by blurred vision, explains...

Red flag symptoms: Headaches
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Red flag symptoms: Headaches

Differentiate causes of primary and secondary headaches.

Red flag symptoms: Hirsutism

Red flag symptoms: Hirsutism

There are a number of possible causes for this symptom, explains Dr Pipin Singh

Red flag symptoms: Hallucinations
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Red flag symptoms: Hallucinations

Hallucinations are often thought to be manifestations of psychiatric disease, but...

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