Reproduction Disorders Flashcards
Define oligomenorrhoea
Reduced frequency of periods (less than 9/year)
Define primary amenorrhoea
Failure of having a period before the age of 16
Define secondary amenorrhoea
Cessation of periods for greater than 6mths in someone who has previously had a period
What is the main cause of primary amenorrhoea?
Congenital abnormality
Turner’s, Kallman’s
List ovarian causes of secondary amenorrhoea
Polycystic ovarian syndrome
Ovarian failure
High prolactin and hypopituitarism can cause amenorrhoea. True/False?
True
What triad of symptoms are classic of amenorrhoea/oestrogen deficiency?
Flushing
Lack of libido
Dyspareunia (painful sex)
List investigations that all patients with oligo-/amen- orrhoea get
LH, FSH, oestradiol levels
Thyroid function tests
Prolactin levels
List additional investigations for oligo-/amen- orrhoea
Ovarian USS, endometrial thickness
Testosterone levels if hirsutism
Pituitary function
In primary hypogonadism in females, the problem is arising from where - ovaries or pituitary/hypothalamus?
Ovaries
In secondary hypogonadism in females, the problem is arising from where - ovaries or pituitary/hypothalamus?
Pituitary/hypothalamus
Describe LH and FSH levels in primary hypogonadism
High LH
High FSH
i.e. hypergonadotrophic hypogonadism
Describe LH and FSH levels in secondary hypogonadism
Low LH
Low FSH
i.e. hypogonadotrophic hypogonadism
Give an example of a condition where primary hypogonadism occurs
Premature ovarian failure
What happens in premature ovarian failure?
Loss of ovarian function causes amenorrhoea, low oestrogen and elevated gonadotrophins
What is idiopathic hypogonadotrophic hypogonadism?
Absent/delayed sexual development assoc. with low levels of gonadotrophins in the absence of anatomical/functional defect in the H-P-gonadal axis
Which syndrome is like idiopathic hypogonadotrophic hypogonadism but includes anosmia (inability to smell)?
Kalmann’s syndrome
What is the major defect/identified cause of idiopathic hypogonadotrophic hypogonadism?
Mutated GnRH receptor (thus inability to sense GnRH from hypothalamus)