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  2. Kallmann syndrome - Wikipedia

    en.wikipedia.org/wiki/Kallmann_syndrome

    To distinguish it from other forms of hypogonadotropic hypogonadism, Kallmann syndrome has the additional symptom of a total lack of sense of smell (anosmia) or a reduced sense of smell. [ 2 ] [ 3 ] [ 4 ] If left untreated, people will have poorly defined secondary sexual characteristics , show signs of hypogonadism , almost invariably are ...

  3. Hypogonadotropic hypogonadism - Wikipedia

    en.wikipedia.org/wiki/Hypogonadotropic_hypogonadism

    Hypogonadotropic hypogonadism (HH), is due to problems with either the hypothalamus or pituitary gland affecting the hypothalamic-pituitary-gonadal axis (HPG axis). [1] Hypothalamic disorders result from a deficiency in the release of gonadotropic releasing hormone ( GnRH ), while pituitary gland disorders are due to a deficiency in the release ...

  4. Functional hypothalamic amenorrhea - Wikipedia

    en.wikipedia.org/wiki/Functional_hypothalamic...

    As women with FHA work to correct energy balance, especially female athletes and those recovering from eating disorder, recovery from hypogonadotropic hypogonadism may occur in a series of phases; there can be stages where the luteal phase is inadequate or may display lower sex steroid and gonadotropin levels for many years. [9]

  5. Gonadotropin-releasing hormone insensitivity - Wikipedia

    en.wikipedia.org/wiki/Gonadotropin-releasing...

    Gonadotropin-releasing hormone (GnRH) insensitivity also known as Isolated gonadotropin-releasing hormone (GnRH) deficiency (IGD) is a rare autosomal recessive genetic and endocrine syndrome which is characterized by inactivating mutations of the gonadotropin-releasing hormone receptor (GnRHR) and thus an insensitivity of the receptor to gonadotropin-releasing hormone (GnRH), resulting in a ...

  6. Isolated hypogonadotropic hypogonadism - Wikipedia

    en.wikipedia.org/wiki/Isolated_hypogonadotropic...

    Isolated hypogonadotropic hypogonadism (IHH), also called idiopathic or congenital hypogonadotropic hypogonadism (CHH), as well as isolated or congenital gonadotropin-releasing hormone deficiency (IGD), is a condition which results in a small subset of cases of hypogonadotropic hypogonadism (HH) due to deficiency in or insensitivity to gonadotropin-releasing hormone (GnRH) where the function ...

  7. Hypogonadism - Wikipedia

    en.wikipedia.org/wiki/Hypogonadism

    The symptoms of hypogonadotrophic hypogonadism, a subtype of hypogonadism, include late, incomplete or lack of development at puberty, and sometimes short stature or the inability to smell; in females, a lack of breasts and menstrual periods, and in males a lack of sexual development, e.g., facial hair, penis and testes enlargement, deepening ...

  8. GnRH neuron - Wikipedia

    en.wikipedia.org/wiki/GnRH_Neuron

    Failure of GnRH neurons to form the proper connections, or failure to successfully stimulate the pituitary with GnRH, means that puberty is not initiated. These disruptions to the GnRH system cause reproductive disorders like hypogonadotropic hypogonadism or Kallmann Syndrome.

  9. Gonadal dysgenesis - Wikipedia

    en.wikipedia.org/wiki/Gonadal_dysgenesis

    46,XX gonadal dysgenesis is characteristic of female hypogonadism with a karyotype of 46,XX. [8] Streak ovaries are present with non-functional tissues unable to produce the required sex steroid oestrogen. [9] Low levels of oestrogen effect the HPG axis with no feedback to the anterior pituitary to inhibit the secretion of FSH and LH. [9]