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Growth Hormone Deficiency

Deficientia somatotropini

For medical students2 min readUpdated 2026-10-10

Growth hormone deficiency (somatotropin deficiency) is a pathological condition characterized by severe tissue trophism impairment and developmental delay. Insufficiency of this hormone's effects leads to marked dystrophic changes, severe cachexia, and involves the hypothalamic-pituitary system, causing concurrent autonomic and psychiatric disorders.

Weight lossAn average of 2–6 kg per month; in cachexia, weight loss reaches 25–30 kg.

"Progeroid" appearanceMarked dryness, thinning, and pronounced wrinkling of the skin.

Bone pathologyDecalcification, osteoporosis, pathological bone fragility, and tooth loss.

Psychiatric statusDepression, apathy, delayed mental development, up to psychosis.

Somatic Manifestations of Growth Hormone Deficiency

Insufficient effects of growth hormone trigger a cascade of dystrophic and degenerative processes in the body. The most prominent clinical marker is progressive weight loss. In typical cases, patients lose 2 to 6 kilograms monthly. In severe disease, extreme emaciation—cachexia—develops, with total weight loss reaching 25–30 kilograms. In pediatric patients, a key sign is pronounced growth retardation.

Significant changes occur in the skin and its appendages. Pathological skin dryness develops, elasticity is lost, and the so-called "progeroid" sign (marked wrinkling) appears. Nails and hair become fragile and brittle.

Musculoskeletal examination reveals bone pathology of a dystrophic and degenerative nature. Observed findings include:

Progressive decalcification and osteoporosis.
Increased, pathological bone fragility.
Tooth loss due to degenerative processes in the jaw structures.

Neuro-Somatic Disorders

The pathogenesis of neuro-somatic and psychiatric disorders is closely linked to hypothalamic nuclear damage and increased intracranial pressure.

Hypothalamic nuclear damage leads to systemic homeostasis failure:

Thermoregulation disorders: most commonly manifested as hypothermia, though subfebrile temperatures can occur in some cases.
Autonomic disorders: include transient hypoglycemia, polyuria, and marked hypotensive reactions. Vascular tone can drop to the point of collapse. Tetanic seizures may also be recorded.

Increased intracranial pressure (ICP) is often driven by intracranial neoplasm growth or hemorrhages. The clinical picture of intracranial hypertension is dominated by:

Regular headaches.
Decreased visual acuity.
Visual field defects.

Symptoms of Psychiatric Disorders

Psychoneurological symptoms are an essential component and are identified in all types of hypothalamic-pituitary insufficiency. These disorders significantly complicate the disease course and reduce the patient's quality of life.

Most frequent manifestations include:

Apathy and indifference to the environment.
Depressive states of varying severity.
Slowed rate of mental development (especially noticeable in children and adolescents).

As hypothalamic-pituitary insufficiency progresses, severe psychotic disorders may occur. Clinical practice records hallucinations and full-blown paranoid psychosis, requiring specialized intervention.

Mnemonic

The "SOC" rule: S — Skin/progeroid appearance (wrinkles, dryness), O — Osteoporosis (bone fragility, tooth loss), C — Cachexia (loss of up to 25–30 kg of body weight).

Frequently asked questions

How does isolated growth hormone deficiency differ from panhypopituitarism?

Pure partial forms of adenohypophyseal insufficiency practically do not occur; combined deficiency is usually noted, dominated by signs of failure in a single trophic function. Panhypopituitarism is a total form of hypopituitarism with total loss of adenohypophyseal functions.

Feature	Partial/"Isolated" Deficiency	Panhypopituitarism
Form Prevalence	Pure partial forms virtually do not occur	Described as a total form of hypopituitarism
Hormonal Status	As a rule, combined deficiency; signs of a single trophic function deficiency dominate	Total loss of adenohypophyseal functions
Extent of Lesion	Not specified for the partial form in sources	Develops with damage and destruction of at least 75–90% of the adenohypophysis parenchyma
Clinical Picture	Determined by the leading syndrome	Clinically variable; depends on the scale and degree of adenohypophysis damage and underlying pathology
Main Forms	—	Sheehan syndrome; Simmonds disease

How does growth hormone deficiency affect a patient's body weight?

Progressive weight loss occurs at a rate of 2–6 kg per month. In severe cases, cachexia develops with a loss of up to 25–30 kg.

What is the "progeroid" appearance sign?

It is a complex of skin changes including marked dryness, wrinkling, and brittle hair and nails, making the patient look significantly older than their age.

What visual disturbances occur with increased intracranial pressure?

Patients experience decreased visual acuity and restricted visual fields against the background of headaches.

What psychiatric disorders are characteristic of hypothalamic-pituitary insufficiency?

The most frequent are apathy, depression, and a slowed rate of mental development. Psychoses and hallucinations develop less commonly.

Go deeper

Mechanisms of transient hypoglycemia development in hypothalamic lesions
Pathogenesis of tetanic seizures in hypothalamic-pituitary insufficiency
Differential diagnosis of causes of increased intracranial pressure in endocrine pathologies
Connection between bone tissue degenerative changes and loss of GH effects
Pathogenesis of hypotensive reactions and circulatory collapse in hypothalamic disorders