Category: H

  • Hypersecretion

    A condition in which too much of a substance is secreted.  

  • Hyperpnoea

    Unusually deep or fast breathing, e.g. after physical exercise.  

  • Hyperpiesis

    Unusually high pressure, especially of the blood.  

  • Hypernatraemia

    A serious condition occurring most often in babies or elderly people, in which too much sodium is present in the blood as a result of loss of water and electrolytes through diarrhoea, excessive sweating, not drinking enough or excessive salt intake. A serum sodium concentration that is above normal. The condition is usually caused by…

  • Hypermetropia

    A condition in which someone sees more clearly objects which are a long way away, but cannot see objects which are close. The refractive condition of the eye represented by the location of the conjugate locus of the retina behind the eye when accommodation is relaxed. This condition is corrected by convex lenses. Farsightedness; an…

  • Hypermenorrhoea

    Menstruation in which the flow is excessive.  

  • Hyperkinesia

    A condition in which there is unusually great strength or movement. Increased muscular movement and physical activity. In children it may be due to attention-deficit hyperactivity disorder (ADHD).  

  • Hyperhidrosis

    A condition in which too much sweat is produced. Excessive perspiration, sometimes caused by strong emotion, heat, hyperthyroidism, or menopausal changes. A disorder characterized by excessive perspiration. It may occur in one part of the body (such as the armpits) or all over the body. Hyperhidrosis can affect the hands, the armpits, or the feet.…

  • Hyperdactylism

    The condition of having more than the usual number of fingers or toes. The condition of having more than the normal number of fingers or toes. The extra digits are commonly undersized (rudimentary) and are usually removed surgically shortly after birth.  

  • Hyperchloraemia

    A condition in which there is too much chloride in the blood.