Jansen R
Med J Aust. 1987 Apr 6;146(7):342, 345, 349-53.
Conception is a matter of chance. A couple's monthly probability of conceiving naturally is known as their fecundability. The average "normal" fecundability (as a proportion) is approximately 0.2. This means that most young couples can expect to have children and will conceive within 12 months of attempting pregnancy. This article examines the causes of infertility and the results that can be achieved by conventional treatment among couples with a single cause for their infertility. The difficulties that are faced when conventional infertility treatment is applied to infertility with multiple causes or with no apparent cause are explained.
受孕是一件碰运气的事。一对夫妇自然受孕的月度概率被称为他们的生育能力。平均“正常”生育能力（以比例表示）约为0.2。这意味着大多数年轻夫妇有望生育，并将在尝试怀孕的12个月内受孕。本文探讨了不孕的原因以及针对单一不孕原因的夫妇采用传统治疗所能取得的效果。还解释了将传统不孕治疗应用于多原因不孕或无明显原因不孕时所面临的困难。
