Male Infertility: Definition and Causes
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Questions and Answers

In how many cases of infertility is the male factor substantially contributory?

  • 50% (correct)
  • 70%
  • 30%
  • 20%
  • What is the definition of male infertility?

  • The inability of a male to make a fertile female pregnant for at least one year of unprotected intercourse (correct)
  • The inability of a male to make any female pregnant
  • The inability of a male to maintain an erection
  • The inability of a male to produce any sperm
  • What is the etiological cause involving congenital GnRH Deficiency known as?

  • Down syndrome
  • Turner syndrome
  • Cushing syndrome
  • Kallmann syndrome (correct)
  • Which part of the body is responsible for the endocrinological cause of male infertility?

    <p>Hypothalamus</p> Signup and view all the answers

    What percentage of male infertility cases are classified as idiopathic male infertility?

    <p>10% to 20%</p> Signup and view all the answers

    Which factor is important to consider when investigating infertility in partners?

    <p>Both the male and female partners' medical histories</p> Signup and view all the answers

    What is the term for the absence of ejaculate at all?

    <p>Aspermia</p> Signup and view all the answers

    Which condition is characterized by the presence of 1 × 10 ml leucocytes in the ejaculate?

    <p>Asthenozoospermia</p> Signup and view all the answers

    What is the term for a condition where all the sperm are dead on a fresh semen sample?

    <p>Necrospermia</p> Signup and view all the answers

    Which term refers to the condition where sperm concentration is low?

    <p>Oligozoospermia</p> Signup and view all the answers

    What does normospermia indicate?

    <p>All semen parameters within the acceptable reference limits</p> Signup and view all the answers

    Anejaculation is a type of sexual dysfunction characterized by:

    <p>Complete absence of ejaculate</p> Signup and view all the answers

    Male infertility is defined as the inability of a male to make a fertile female pregnant for a minimum of at least six months of unprotected intercourse.

    <p>False</p> Signup and view all the answers

    Male and female causes of infertility often co-exist, so it is not necessary to investigate both partners for infertility.

    <p>False</p> Signup and view all the answers

    The male factor is substantially contributory in about 50% of all cases of infertility.

    <p>True</p> Signup and view all the answers

    Congenital GnRH Deficiency is an example of an endocrinological cause of male infertility.

    <p>True</p> Signup and view all the answers

    Idiopathic male infertility accounts for 10% to 20% of male infertility cases where semen parameters are all normal.

    <p>True</p> Signup and view all the answers

    Normospermia indicates that all semen parameters are within normal range and the male is fertile.

    <p>False</p> Signup and view all the answers

    Congenital urogenital abnormalities can be caused by acquired factors such as bilateral obstruction of the vas deferens and epididymitis

    <p>False</p> Signup and view all the answers

    Immunological causes of male infertility can include tuberculosis and fungal infections

    <p>True</p> Signup and view all the answers

    Gonococci, chlamydia, and syphilis are examples of urogenital tract infections that can lead to male infertility

    <p>True</p> Signup and view all the answers

    Negative feedback inhibition of the hypothalamus can lead to an excess of androgens

    <p>False</p> Signup and view all the answers

    Environmental toxins such as excess alcohol can inhibit testosterone production

    <p>True</p> Signup and view all the answers

    Aspermia refers to the condition where no ejaculate is present at all

    <p>True</p> Signup and view all the answers

    Asthenozoospermia is characterized by the presence of 1 × 10 ml leucocytes in the ejaculate

    <p>False</p> Signup and view all the answers

    Necrospermia indicates the presence of all dead sperm in a fresh semen sample

    <p>True</p> Signup and view all the answers

    Oligozoospermia refers to a condition where sperm concentration is within the acceptable reference limits

    <p>False</p> Signup and view all the answers

    Premature ejaculation, anejaculation, and erectile dysfunction are all examples of male sexual dysfunctions

    <p>True</p> Signup and view all the answers

    Pituitary macroadenomas and testicular tumors are examples of malignancies that can lead to male infertility

    <p>True</p> Signup and view all the answers

    Cannabinoids, opioids, and psychotropic drugs can all inhibit GnRH production

    <p>True</p> Signup and view all the answers

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