Private unexplained weight loss clinic in London, same-day endocrinology.
Losing weight without trying is one of the few symptoms that is almost never nothing. It has a long list of causes, many of them entirely treatable — but the list also includes conditions where early diagnosis matters a great deal, which is why this is a symptom to act on rather than monitor. Our private endocrinology clinic in East London offers same-day unexplained weight loss assessment with a private endocrinologist, diagnosis and a clear treatment plan — usually without a referral and often the same day.
The condition
What is unexplained weight loss?
Losing weight without trying is one of the few symptoms that is almost never nothing. It has a long list of causes, many of them entirely treatable — but the list also includes conditions where early diagnosis matters a great deal, which is why this is a symptom to act on rather than monitor.
- What unexplained weight loss is
- Symptoms to look for
- Causes & risk factors
- Tests & diagnosis
- Treatment options
- When to see a specialist
Understanding unexplained weight loss
Unexplained weight loss: symptoms, causes, tests & treatment
Arrange prompt assessment, and urgently if there is also
- difficulty swallowing, or food sticking
- bleeding — coughing blood, blood in stool or urine, or vomiting blood
- a new lump anywhere, or swollen glands persisting more than three weeks
- drenching night sweats, or persistent fever
- a persistent change in bowel habit, or persistent abdominal pain
- a persistent cough or hoarse voice lasting more than three weeks
Unintentional weight loss combined with any of these meets NICE criteria for urgent investigation. This is not a symptom to review in a few months to see how it goes.
How much counts
Clothes becoming loose, a belt needing tightening, or someone else commenting are often the first signs — many people do not weigh themselves. If you have old weights recorded anywhere, bring them; the trend matters more than a single figure.
Causes worth excluding
- Diabetes — particularly with thirst and frequent urination. Weight loss can be the presenting feature.
- Overactive thyroid — with palpitations, tremor, heat intolerance and anxiety.
- Cancer — the reason for urgency. Bowel, stomach, oesophageal, pancreatic, lung, kidney and lymphoma all present this way.
- Coeliac disease and inflammatory bowel disease.
- Chronic infection — tuberculosis in particular, which is more common in East London than nationally, and HIV.
- Depression, anxiety and eating disorders — common causes, and eating disorders occur at every age and body size.
- Heart, lung, liver or kidney disease, and dementia in older people.
- Medicines, dental problems making eating painful, and simply reduced food intake for social or financial reasons.
Ask yourself two things
Is your appetite up or down? Weight loss with a good or increased appetite points strongly towards diabetes, an overactive thyroid or malabsorption. Weight loss with a poor appetite points more towards cancer, chronic infection, depression or organ disease. And is anything making eating difficult? Painful swallowing, mouth problems, early fullness or nausea each direct the investigation differently.
What investigation involves
- Documented weight, and comparison with any previous records
- Blood tests — full blood count, inflammatory markers, kidney and liver function, calcium, glucose or HbA1c, thyroid function, coeliac screening, and often ferritin, B12 and folate
- Urine testing, and a stool test for blood or calprotectin where relevant
- Chest X-ray, particularly in smokers or with any cough
- Further imaging or endoscopy guided by the findings
- HIV and TB testing where risk factors are present — both are treatable and both are missed
If everything comes back normal
That is a good result and it is not the end of it. Persistent unexplained weight loss with normal initial tests warrants a period of documented monitoring with repeat assessment rather than discharge, because some conditions declare themselves over weeks. Meanwhile, nutritional support matters — continuing to lose weight causes muscle loss, falls and poorer outcomes from whatever is eventually found.
Endocrinology services we offer
Expert care under one roof
From same-day GP assessment to specialist care, scans and tests — with a clear plan the same visit.

Endocrinology & Diabetes
Hormone & diabetes care.

Blood & Hormone Tests
Thyroid, hormone & metabolic tests.

Diabetes Screening
Blood sugar & HbA1c checks.

Weight Management
Medical weight management.

Health MOT
A full private health check.

Private GP
Same-day GP to start your care.
Simple & reassuring
Seen today, in three easy steps
Book in a minute
Book online any time or call reception — no GP referral needed for most appointments.
Seen quickly
A GMC-registered clinician assesses you, with tests and scans arranged in-house where possible.
Diagnosis & plan
You leave with a clear diagnosis, treatment, and any specialist care or scan arranged.
Private assessment
See a private endocrinologist for unexplained weight loss in London
At our private endocrinology clinic on Whitechapel Road in East London, you can see a private endocrinologist or unexplained weight loss doctor without a referral — most days, often the same day. A private GP in East London or consultant endocrinologist will assess you, arrange the right tests and explain your diagnosis and treatment options clearly. We help patients across East London, Canary Wharf, the City, Docklands and Aldgate who want fast, private answers about unexplained weight loss.
Local, private, fast
A private endocrinology clinic for East London & Canary Wharf
Tower Bridge Hospital is on Whitechapel Road in the heart of East London — minutes from Canary Wharf, the City of London, Docklands and Aldgate. Patients across Tower Hamlets, Wapping, Limehouse and Bethnal Green choose us for a fast, private unexplained weight loss appointment with a endocrinologist, without the wait or the referral.
Why choose us
Why choose our East London private endocrinology clinic
- Same-day, no referral — private GP and endocrinology under one roof
- Specialist-led care with GMC-registered clinicians
- Tests & scans on site, results explained the same visit
- Minutes from Canary Wharf & the City of London
- A named clinician who explains your results clearly
- Transparent pricing and a plan you can act on
Ready when you are
See a private endocrinologist for unexplained weight loss — the same day.
Book a private unexplained weight loss assessment in East London: same-day appointments, endocrinologist-led care and a clear plan. No referral needed.
Common questions
Unexplained weight loss in London: your questions answered
Where can I find a private unexplained weight loss specialist near me in East London?
Our private endocrinology clinic is on Whitechapel Road in East London, minutes from Canary Wharf and the City. You can see a private endocrinologist or unexplained weight loss doctor for assessment and treatment, usually the same day and without a referral.
Can I see a private endocrinologist for unexplained weight loss the same day?
Yes. We hold same-day private appointments most days, including Saturdays, so you can be assessed by a endocrinologist or GP quickly, with tests done in-house where possible.
How much does a private unexplained weight loss appointment cost in London?
We keep pricing transparent — see our fees page or call 020 7916 0029, and we will explain the cost of the unexplained weight loss assessment and any tests before you book.
Do I need a referral to see a private endocrinologist for unexplained weight loss?
No. You can book directly with our clinic. If you are unsure whether to start with a private GP or a endocrinologist, we will guide you.
Which areas do you serve for private unexplained weight loss care?
We see private patients from across East London, Canary Wharf, the City of London, Docklands, Aldgate, Wapping, Limehouse and Tower Hamlets.
Medically reviewed by Dr Haydar Bolat — Clinical Director, GMC 7138332. Last reviewed August 2026 · next review August 2027. Written in line with our editorial & content-review policy, using guidance from the NHS, NICE and the relevant royal colleges. This information is general and does not replace personal medical advice.