MonitorEmergency Guide
Weight loss: Red Flags & Emergency Signs
Unintentional weight loss of >5% of body weight over 6–12 months without explanation is a red-flag symptom requiring investigation for malignancy, TB, HIV, or endocrine disease.
🚨 Call 999 / 112 Immediately
- ⚠Rapid unintentional weight loss with confusion, polyuria, and fruity breath — DKA (type 1 diabetes emergency)
⚡ See a Doctor Today
- •Weight loss >10% over 3 months — malignancy until proven otherwise
- •Weight loss with haemoptysis, night sweats, and cough — tuberculosis
- •Weight loss with lymphadenopathy, night sweats, and fever — lymphoma (B symptoms)
- •Weight loss with dysphagia — oesophageal cancer
High-Risk Combinations
When weight loss occurs together with any of these symptoms, urgency increases significantly:
Conditions to Rule Out Urgently
Lung Cancerurgent
CXR + CT chest; PET scan; bronchoscopy
Lymphomaurgent
FBC + LDH + CT PET; lymph node biopsy
Tuberculosisurgent
CXR; sputum AFB × 3; Mantoux/IGRA; notify public health
Oesophageal Cancerurgent
OGD + CT staging; 2-week wait referral
Condition Authority Pages
When to Call Emergency Services
- →Weight loss with confusion, deep breathing, and fruity breath in a young diabetic — DKA