Endocrinology

Acromegaly Symptoms in Singapore

A benign pituitary tumour silently drives years of physical change, resulting in acromegaly. This is a condition where excess growth hormone causes progressive enlargement of the hands, feet, and facial structures long after the body has attained adult size. The changes occur so gradually that many patients only recognise them in retrospect when comparing their current features with old photographs. Hence, the average time from symptom onset to diagnosis can span many years. During that interval, complications affecting the heart, joints, and metabolism may develop without apparent warning.

The pituitary gland, a pea-sized structure at the base of the brain, normally regulates growth hormone release in response to the body’s needs. In contrast, for acromegaly, a benign tumour called an adenoma causes continuous hormone secretion regardless of the body’s signals.

Physical Changes in the Hands and Feet

Gradual enlargement of the hands and feet represents a commonly consistent early indicator. Patients frequently notice their rings becoming tight or requiring resizing, and shoes which previously fit comfortably become too narrow. The soft tissue swelling differs from weight-related changes. Fingers appear thickened rather than simply larger, with a characteristic doughy texture.

Facial Feature Alterations

The face undergoes characteristic changes that affect multiple structures. The brow bone becomes more prominent. The nose widens and thickens, while the lips, particularly the lower lip, enlarge. The jaw grows forward and downward, a change called prognathism, which can alter the bite alignment and cause teeth spacing to increase.

Skin texture changes accompany these bony alterations. Facial skin becomes thicker and develops deeper creases, particularly the nasolabial folds running from the nose to the corners of the mouth. The forehead may develop pronounced horizontal lines. Pores enlarge, and sebaceous gland activity increases, sometimes causing oily skin or adult-onset acne.

Dental problems may develop as jaw growth affects tooth alignment, and dentures or dental appliances may require repeated adjustments.

Sleep and Breathing Disturbances

Sleep apnea frequently develops as soft tissues in the airway and craniofacial bone structures undergo change. The tongue increases in size, throat tissues thicken, and changes in structure within the mouth, including the jaw,w contribute to airway narrowing during sleep. Partners often report loud snoring, breathing pauses, and gasping episodes. The affected individual may wake up feeling unrefreshed despite an apparently good sleep duration, hence experiencing morning headaches and daytime fatigue.

Apart from sleep disruption, the voice may deepen as the vocal cord tissues thicken. Some patients develop a hollow or husky voice quality. Breathing can become more audible even while awake, with sinus congestion persisting despite treatment.

Joint Pain and Musculoskeletal Symptoms

Back pain is particularly common, with the spine showing characteristic changes. Spinal vertebrae may enlarge with narrowing of the spaces between them. Carpal tunnel syndrome develops as wrist tissues compress the median nerve, causing hand numbness, tingling, and weakness that may be worse at night.

Muscle weakness may develop in spite of increased muscle bulk. Patients may notice difficulty climbing stairs or rising from chairs.

Metabolic and Systemic Effects

Growth hormone influences glucose metabolism, resulting in impaired glucose tolerance or diabetes. Symptoms of elevated blood sugar such as increased thirst, frequent urination, and fatigue may lead to diagnosis. Elevated blood glucose levels in the context of concomitant changes mentioned above may result in the consideration of acromegaly as a possible secondary cause.

Excessive sweating occurs due to enlarged sweat glands and increased metabolism. There may be a need to change clothes multiple times daily or avoid certain social situations which worsen perspiration. Body odour may change in quality and intensity.

Headaches develop in many cases related to the tumour’s size, increasing pressure within the skull. The headache pattern varies. Some patients experience constant dull pressure, while others have intermittent severe episodes. Visual changes can occur if the tumour grows large enough to compress the optic nerves, causing peripheral vision loss. This could become an emergency if it occurs suddenly.

💡 Did You Know?
The pituitary gland weighs less than one gram yet coordinates the release of eight hormones across its two lobes, including influencing growth, thyroid hormone balance, cortisol release, reproduction, and water balance throughout the body. 

Skin and Soft Tissue Changes

Skin throughout the body becomes thicker and may develop a velvety texture. Skin tags, which are small benign growths, appear more frequently, especially in the neck and underarms. The condition also increases skin pigmentation in some patients, most noticeable in skin creases and areas of friction.

Heel pads thicken measurably, contributing to changes in shoe fit and walking comfort. The thickness of these pads can actually be measured radiologically and used as a diagnostic indicator. Nail changes include increased thickness and brittleness.

Hair patterns may change, with increased body hair in women and changes in hair texture affecting both genders. Some patients notice their hair becoming coarser or more wiry over time.

Cardiovascular Manifestations

The heart develops a specific pattern of enlargement called acromegalic cardiomyopathy due to the chronic growth hormone excess. This results in thickening of the muscles of the heart chambers called the ventricles bilaterally, resulting in diastolic dysfunction. This is often closely associated with the duration of excess hormone exposure rather than just the degree of elevation. Symptoms may include shortness of breath during exertion, reduced exercise tolerance, and leg swelling.

Blood pressure is frequently increased and is sometimes one of the earliest detectable abnormalities. Irregular heart rhythms may develop, causing an increased awareness of the heartbeat. These significant complications require management and close monitoring.

Reproductive and Hormonal Disruption

The pituitary tumour can affect the production of other hormones beyond growth hormone. Women may experience menstrual irregularities, including missed periods or absent menses. Fertility may be impaired. Breast milk discharge without pregnancy or nursing, called galactorrhoea, occurs when there are concurrent elevated prolactin levels.

Men may notice reduced libido, erectile dysfunction, or decreased need to shave as testosterone production falls. 

There can be fatigue and mood changes related to the multiple hormonal imbalances.

These reproductive symptoms often prompt medical evaluation before the physical changes of acromegaly become evident, providing an opportunity for earlier diagnosis.

When to Seek Professional Help

Consider a medical evaluation if you notice:

• Rings, watches, or shoes becoming progressively tighter without weight gain
• Facial changes are visible when comparing current photos to those from several years ago
• New or worsening snoring with daytime fatigue despite adequate sleep
• Joint pain affecting multiple areas earlier than expected for your age
• Carpal tunnel symptoms in both hands
• Excessive sweating requiring frequent clothing changes
• New diagnosis of diabetes or difficulty controlling previously stable blood sugar
• Persistent headaches with any visual changes
• Menstrual irregularities or unexplained changes in libido

Commonly Asked Questions

How quickly do acromegaly symptoms develop?

Changes typically occur over years to decades, progressing gradually such that neither patients nor close contacts recognise them until features on photographs spanning several years are compared. This slow progression delays diagnosis considerably.

Can acromegaly symptoms be reversed with treatment?

Soft tissue changes, including facial swelling, hand and foot enlargement, and sweating, may improve with treatment, although individual responses vary. However, bony changes to the jaw, brow, and other skeletal structures are typically permanent. Joint damage present at diagnosis may stabilise but generally does not reverse.

At what age does acromegaly usually appear?

Most cases are diagnosed between the ages of 40 and 50 years, though symptoms often begin a decade or more before diagnosis. The condition can occur at any adult age. The earlier onset is associated with longer diagnostic delays and, in some cases, more pronounced symptoms.

Is acromegaly hereditary?

Most cases occur sporadically without a family history. Rare genetic syndromes can predispose to pituitary tumours, but these account for a small minority of cases. Having a family member with acromegaly only minimally increases risk.

What specialists treat acromegaly?

Endocrinologists typically coordinate care, with neurosurgeons involved if surgical removal of the pituitary tumour is indicated. Depending on complications, cardiologists, sleep medicine specialists, and other specialists may be needed to optimise management.

Next Steps

Soft tissue changes, swelling in the hands and feet, facial alterations, and excessive sweating may improve with treatment when eligible, although individual outcomes vary. Bony structural changes are typically permanent, making earlier evaluation clinically relevant. Cardiovascular and metabolic complications, including cardiomyopathy and glucose intolerance, can progress silently during the diagnostic delay. Hormonal testing, including IGF-1 measurement, is the appropriate first step when acromegaly is suspected.

If you are experiencing progressive enlargement of the hands or feet, facial changes, excessive sweating, or joint pain, professional medical evaluation and specialised clinical consultations are available to undergo comprehensive hormonal assessment.