남 성 불 임 증

2) Laboratory evaluation

(1) Semen analysis

- x 3 with consistent period of abstinence (2-5 d.)
- by masturbation into a wide-necked clear glass
- should be analyzed within 1 hr. and kept at body temperature
1> sperm concentration
2> sperm motility
3> sperm morphology
4> fructose
ie) fructose(-) , low volume, & coagulation (-)

① agenesis of vas and seminal vesicle

② ejaculatory duct obstruction

(2) Hormone evaluation
- endocrinologic cause: 3%
- testosterone, LH, FSH, prolactin
- elevated FSH : germinal epithelial damage.
(usually irreversible germ cell damage)
(3) Chromosomal study

(4) Immunologic study

- immunologic cause: 3 -7 %
- SA: normal or spontaneous agglutination, decreased motility
- method;

① sperm agglutination test

② sperm immobilization test

③ immunobead-binding(IBB) technique

(…(생략)

(8) Radiologic investigation