Dr Loh Lih Ming is a Senior Consultant in the Department of Endocrinology at Singapore General Hospital and a Senior Consultant at the SingHealth Duke-NUS Diabetes Centre.
Her clinical interests focus on Pituitary and Adrenal Endocrinology and Neuroendocrinology, including adrenal insufficiency, adrenal tumours, pituitary disorders and growth, pubertal and reproductive disorders.
She serves on the faculty of the SingHealth Endocrinology Senior Residency Program.
Clinical focus
Pituitary & adrenal.
Qualifications (as publicly listed)
MBBS, MMed (Int Med), MRCP (UK), FRCP (Edin), FAMS (Endocrinology).
Where they practise
- Clinic / practice: Department of Endocrinology, Singapore General Hospital — Outram
- Hospital / training affiliation(s): Singapore General Hospital; SingHealth Duke-NUS Diabetes Centre
Getting to the clinic
Dr Loh Lih Ming practises in the Department of Endocrinology at Singapore General Hospital (SGH) on the Outram campus. The nearest station is Outram Park MRT (EW16 / NE3 / TE17), an interchange linking the East–West, North East and Thomson–East Coast Lines, which makes the hospital reachable from most parts of the island. From the station, follow signs to the SGH Campus; sheltered walkways and the campus shuttle connect the buildings. Buses serve Outram Road and nearby stops, and taxi or ride-hailing drop-off is available at the specialist outpatient clinics.
SGH is a large campus, so allow time to find the correct clinic and to register beforehand. Visitor carparks are available for those driving, though the area is busy on weekday mornings. An information counter can point you to the right department and level if you are unsure.
What pituitary and adrenal endocrinology covers
Dr Loh’s focus is pituitary and adrenal endocrinology and neuroendocrinology. The pituitary, a small gland at the base of the brain, controls many other hormone glands, so pituitary disorders can affect growth, metabolism, fertility and the stress response. Conditions include pituitary tumours and hormone over- or under-production. The adrenal glands, sitting above the kidneys, produce cortisol and other hormones; adrenal disorders include adrenal insufficiency, where too little cortisol is made, and adrenal tumours.
Her listed interests also include growth, pubertal and reproductive disorders, reflecting the wide reach of these glands. Neuroendocrinology links the nervous and hormonal systems. Care in this area often involves careful hormone testing and imaging to pinpoint the problem, because symptoms can be subtle and overlap with many other conditions.
What to expect at a consultation
A first visit usually starts with a detailed history of your symptoms, which might include fatigue, changes in weight, blood pressure, periods, libido, mood or growth. The doctor reviews medications, including any steroids, and your general health. Examination may include blood pressure, weight and a focused assessment depending on the suspected gland.
Investigations are central in this area and often include blood tests for specific hormones, sometimes at set times of day, dynamic tests that measure how glands respond to stimulation or suppression, and imaging such as an MRI of the pituitary or a CT of the adrenals. Results are then explained and management options discussed, which may involve medication, monitoring or referral for further treatment.
Preparing for your appointment
- Photo identification and your GP or polyclinic referral letter, useful at a public hospital.
- Previous records, hormone results and any pituitary or adrenal scans.
- A current list of medications and supplements, with doses, including any steroids.
- A written list of symptoms, including their timing and how they have changed.
- A note of any family history of hormone or gland disorders.
Some hormone tests are timed to a particular part of the day or need specific preparation, so check with the clinic whether anything is required before your visit.
After your consultation and follow-up
After the consultation you will receive an explanation of your results and an agreed plan. Because pituitary and adrenal testing can be complex, several tests may be staged over time, and the clinic will advise how results are shared and when to return. Many of these conditions are managed long term, so follow-up helps adjust hormone replacement or monitor a tumour.
You may be referred for additional imaging, dynamic testing, or assessment by a neurosurgeon or other specialist where appropriate. Continuity of care is important, particularly for adrenal insufficiency, where consistent advice on steroid dosing matters. A second opinion can be sought at any time. Seek urgent care for severe vomiting, collapse or confusion if you have adrenal insufficiency, as this may signal an adrenal crisis.
Booking, referrals and fees
At a public hospital a GP or polyclinic referral is generally needed and may give access to subsidised rates for eligible patients. MediSave, MediShield Life or an Integrated Shield Plan may apply to eligible procedures and investigations within set limits, while consultations may carry an out-of-pocket portion depending on subsidy status. Confirm current fees, subsidy eligibility and referral requirements directly with the hospital.
Common questions
Why do pituitary tests sometimes take several visits?
Pituitary and adrenal hormones often need timed or dynamic testing, so results may be built up over more than one appointment.
What is adrenal insufficiency?
It is a condition where the adrenal glands make too little cortisol; it usually needs hormone replacement and careful management during illness.
Are pituitary tumours always cancer?
Most pituitary tumours are non-cancerous, but they can affect hormones or nearby structures, which is why they are assessed carefully.
Will I need a brain scan?
An MRI of the pituitary or a CT of the adrenals may be arranged if imaging is needed to locate or assess a gland problem.
Living with a pituitary or adrenal condition
Many pituitary and adrenal conditions are managed steadily over years, and understanding your own treatment is an important part of staying well. For people taking hormone replacement, such as steroids for adrenal insufficiency, knowing why the dose matters, how to take it consistently, and what to do if you forget a dose can prevent problems. A particularly important concept is the need to increase steroid cover during illness, fever, vomiting or before some procedures, because the body cannot raise its own cortisol in the usual way. Your doctor will explain any sick-day rules that apply to you, and some patients are advised to carry information about their condition in case of emergency. Keeping a simple record of your hormone results and doses over time can also help at follow-up visits and if you ever need care elsewhere.
More questions about pituitary and adrenal care
Why do I need to tell other doctors about my condition?
Conditions like adrenal insufficiency affect how your body copes with illness and surgery, so other doctors and dentists need to know in order to adjust care safely.
Can these conditions affect mood or energy?
Yes. Hormones from the pituitary and adrenal glands influence energy, mood, sleep and stress responses, so imbalances can have wide-ranging effects that improve as treatment is optimised.
Will I always need the same dose?
Not necessarily. Doses are reviewed over time and may change with your health, other medicines or life circumstances, which is why regular follow-up matters.
Related guides
Sources & verification
See also: our editorial directory of endocrinologists in Singapore and our shortlist of endocrinology clinics.
This is an independent, factual profile compiled from the public sources listed above — not a paid listing, advertisement or endorsement. Details can change; always verify a doctor’s current registration on the Singapore Medical Council public register and confirm specifics directly with the clinic. This page is general information, not medical advice or a recommendation of any individual practitioner. See our editorial policy.
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