子宮內膜異位瘤會影響卵巢排卵

研究顯示，卵巢長子宮內膜異位瘤後，排卵比率較低(31%)

比未長子宮內膜異位瘤之卵巢排卵比率(50%)較低‧

http://humrep.oxfordjournals.org/content/24/9/2183.full

Table II

Side of ovulation according to morphological and clinical characteristics.

Characteristics	Number of cases	Ovulation in the affected ovary
		Number	% (95% CI)	P
Entire cohort	70	22	31% (22–43%)	0.002
Number of cysts
1	54	19	35% (24–49%)	0.028
≥2	16	3	19% (7–43%)	0.012
Dimension of the cystsa
Diameter<30 mm	29	10	34% (20–53%)	0.095
Diameter≥30 mm	25	9	36% (20–56%)	0.162
Side of the cysts
Right ovary	33	7	21% (11–38%)	<0.001
Left ovary	37	15	41% (26–57%)	0.251