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Health

List Diseases – H

3 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Hypoxia is oxygen deficiency, a condition that occurs when there is insufficient supply of oxygen to the body's tissues or a disruption in its utilization in the process of biological oxidation, accompanies many pathological conditions, being a component of their pathogenesis and clinically manifested by hypoxic syndrome, which is based on hypoxemia.
Hypovolemia (from the French volume - an unambiguous concept that defines stretching and volume) is a decrease in vascular tone that occurs with massive plasma and blood loss or a decrease in vascular tone due to disturbances in neuroreflex regulation.
Hypotrophy is an alimentary-dependent condition caused by predominant protein and/or energy starvation of sufficient duration and/or intensity.

Hypothyroidism is a clinical syndrome caused by a long-term, persistent deficiency of thyroid hormones in the body or a decrease in their biological effect at the tissue level.

Hypothyroidism is a clinical syndrome caused by decreased production of thyroid hormones or lack of sensitivity to them in tissues. Congenital and acquired hypothyroidism are distinguished; according to the level of disorder of regulatory mechanisms, primary (pathology of the thyroid gland itself), secondary (pituitary disorders) and tertiary (hypothalamic disorders) are distinguished.
Insufficient levels of thyroid hormones in organs and tissues lead to the development of hypothyroidism, a disease first described by W. Gall in 1873. The term “myxedema”, coined by V. M. Ord (1878), means only mucous swelling of the skin and subcutaneous tissue.
Hypothermia is a decrease in internal body temperature below 35 °C. Symptoms progress from shivering and drowsiness to confusion, coma and death.

Hypothalamic prepubertal hypogonadism can be observed in the absence of organic changes in the hypothalamic region. In this case, a congenital, possibly hereditary nature of the pathology is assumed. It is also observed in structural lesions of the hypothalamus and pituitary stalk in craniopharyngiomas, internal hydrocephalus, neoplastic processes of various types

Hypotension of the eye occurs as a consequence of other diseases of the eyes or the whole body. Intraocular pressure can decrease to 7-8 mm Hg and below the true figures.

Subconjunctival, or intraocular hemorrhage, also called hyposphagma, occurs when a small blood vessel is damaged, causing a small amount of blood to leak under the conjunctiva.

The concentration of spermatozoa in one milliliter of semen is less than the lower reference (physiologically normal) limit is defined as hypospermia (from Greek hypo - below) or oligospermia (from Greek oligos - few, insignificant).

Hypospadias is a congenital anomaly of the penis, which is manifested by a split in the posterior wall of the urethra from the head of the penis to the perineum.
Hypoproliferative anemias are the result of erythropoietin (EPO) deficiency or decreased response to it; they are usually normochromic and normocytic

A cerebral circulation disorder manifested by symptoms of vertebrobasilar deficit may result from a disorder such as hypoplasia of the left vertebral artery.

Renal hypoplasia is a developmental anomaly characterized by a decrease in the size of the kidney. This defect occurs with a frequency of 0.9% among all kidney anomalies.
Condylar process hypoplasia is a facial deformity caused by a decrease in the height of the mandibular branch.

It is of some interest that a person has an organ that may or may not be present, and nothing will change. This concerns, first of all, the frontal sinuses.

Previously, one of the main causes of hypopituitarism was considered to be ischemic necrosis of the pituitary gland (necrosis of the pituitary gland that developed as a result of massive postpartum hemorrhage and vascular collapse - Sheehan syndrome; necrosis of the pituitary gland that occurred as a result of postpartum sepsis - Simmonds syndrome; recently the term "Simmonds-Sheehan syndrome" has often been used).
Hypopigmentation and depigmentation of the skin are accompanied by a significant decrease or complete disappearance of melanin. They can be congenital and acquired, limited and diffuse. An example of congenital depigmentation is albinism.
Hypoparathyroidism is a deficiency of the parathyroid glands, characterized by reduced production of parathyroid hormone and impaired calcium and phosphorus metabolism.

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