For infertility examinations, men typically undergo a routine semen analysis to check for any abnormalities. If there are abnormalities in the semen analysis, further testing might be needed for conditions such as varicocele or inflammation of the testicles and epididymis. For women, the examinations generally focus on the fallopian tubes to ensure they are patent, usually assessed through hysterosalpingography or a tubal patency test. Additionally, infertility tests include an ultrasound to monitor the follicles and check for any organic diseases in the uterus and ovaries. For women with menstrual irregularities, it's crucial to perform an endocrine test, specifically the six-item sex hormone check, as normal hormonal levels are necessary for regular menstruation and ovulation, and for the normal development of a fertilized egg. Other investigations for infertility might cover immune-related infertility among others, which require specific hospital tests. Moreover, if there has been a previous incidence of miscarriage, tests might include chromosomal analysis, tests for hemolysis, mycoplasma testing, and a set of tests for genetic counseling, all of which are part of the infertility examination process.