Symptom guide · Oncology

Unexplained Fever

What unexplained fever can point to, how urgent it is, and who assesses it in the UAE.

Also known as fever with no clear cause, recurrent fevers

Same-day care

Be assessed today

Unexplained fever that persists without an obvious infection needs investigation, particularly during or after cancer treatment, when it can be the only sign of a dangerous drop in white cells.

Go now if any of these apply

Fever during or within six weeks of chemotherapy — this is an emergency
Fever with shaking chills, confusion, or a fast heartbeat
Fever lasting more than a week with no clear cause
Drenching night sweats or unexplained weight loss alongside the fever
Fever with a rash that does not fade under pressure

See a doctor the same day. If you are on chemotherapy, contact your oncology team immediately and go to an emergency department.

Ambulance, if symptoms worsen suddenly · 998

At a glance

Quick facts

Also known as: fever with no clear cause, recurrent fevers
Care area: Oncology
Conditions linked: 6

Possible causes

Conditions that can cause unexplained fever

Listed alphabetically. This list is not ranked by likelihood.

These figures describe how often each condition causes this symptom — not how likely it is that this symptom is caused by that condition. Most symptoms have a common, harmless explanation.

Treatment by cause

How the causes of unexplained fever are treated

Treatment follows the diagnosis, not the symptom. Each row is a linked condition and a treatment used for it.

If the cause is	Treatment used	Line
Leukaemia	Bone Marrow Biopsy	First line
Leukaemia	Chemotherapy	First line
Acute Myeloid Leukaemia	Chemotherapy	First line
Acute Lymphoblastic Leukaemia	Chemotherapy	First line
Febrile Neutropenia	Growth Factor Support	First line
Lymphoma	PET-CT Scan	First line
Lymphoma	Chemotherapy	First line
Childhood Cancer	Chemotherapy	First line
Leukaemia	Targeted Therapy	Second line
Leukaemia	Stem Cell Transplant	Second line
Leukaemia	Blood Transfusion Support	Second line
Acute Myeloid Leukaemia	Allogeneic Stem Cell Transplant	Second line
Acute Myeloid Leukaemia	Targeted Therapy	Second line
Acute Lymphoblastic Leukaemia	Allogeneic Stem Cell Transplant	Second line
Lymphoma	Immunotherapy	Second line
Lymphoma	Radiotherapy	Second line
Childhood Cancer	Proton Therapy	Second line
Childhood Cancer	Fertility Preservation	Second line
Childhood Cancer	Survivorship Care Plan	Second line
Acute Lymphoblastic Leukaemia	CAR T-Cell Therapy	Third line
Lymphoma	Autologous Stem Cell Transplant	Third line
Lymphoma	CAR T-Cell Therapy	Third line

Symptom relief

Treatments used to relieve unexplained fever

Growth Factor SupportSupportive And Palliative Care

Find care

Who assesses this in the UAE

These are the specialties that treat the conditions linked to this symptom. Every listed doctor holds a UAE licence.

Questions people ask

Can unexplained fever be a sign of leukaemia?

Yes. Unexplained fever: very common among people with leukaemia. It does not work the same way in reverse — for most people with this symptom the cause turns out to be something else, and more common — so it is not a diagnosis on its own.

Can unexplained fever be a sign of acute myeloid leukaemia?

Yes. Unexplained fever: very common among people with acute myeloid leukaemia. It does not work the same way in reverse — for most people with this symptom the cause turns out to be something else, and more common — so it is not a diagnosis on its own.

Can unexplained fever be a sign of acute lymphoblastic leukaemia?

Yes. Unexplained fever: very common among people with acute lymphoblastic leukaemia. It does not work the same way in reverse — for most people with this symptom the cause turns out to be something else, and more common — so it is not a diagnosis on its own.

Can unexplained fever be a sign of febrile neutropenia?

Yes. Unexplained fever: very common among people with febrile neutropenia. It does not work the same way in reverse — for most people with this symptom the cause turns out to be something else, and more common — so it is not a diagnosis on its own.

Keep reading

More about unexplained fever

Cancer care in the UAE

Hospitals & Medical Centers in Abu Dhabi

Most UAE cancer care is delivered inside hospital services rather than by standalone oncology clinics, so these are licensed hospitals & medical centers listed in Abu Dhabi. Confirm the specific cancer service exists before you travel, and know that asking for a second opinion is routine.

City

AL Ahli Hospital Company
Ahalia Hospital Musaffah Building - Musaffah - Musaffah Industrial - Abu Dhabi - United Arab Emirates
Accepts: Daman, Thiqa, AXA, Cigna +26 more
AL Dhannah Hospital
Al Ruwais Industrial City - Abu Dhabi - United Arab Emirates
Accepts: Daman, Thiqa, AXA, Cigna +30 more
AL Rahba Hospital
Abu Dhabi, Abu Dhabi
Accepts: Daman, Thiqa, AXA, Cigna +30 more

See every listing in Abu Dhabi Medical Oncology

Second opinions are routine in cancer care and asking for one does not affect your treatment. How to arrange a second opinion in the UAE.

Ordered by verification status and how complete each clinic's public record is, then alphabetically. This is a directory listing, not a ranking — Zavis does not rate or recommend providers.

A factual listing drawn from the DHA, DOH and MOHAP licence registers. It is not a referral, an endorsement, or advice that any of these providers is right for you.

Medical disclaimer. This page is general health information, not medical advice, and it cannot diagnose you. Always consult a licensed healthcare provider about your own symptoms and treatment. In an emergency in the UAE, call 998 for an ambulance.