Smoking and male infertility
Male infertility refers to a male's inability to cause pregnancy in a fertile female. In humans it accounts for 40-50% of infertility. It affects approximately 7% of all men. Male infertility is commo...
Paternal age effect
The paternal age effect (PAE) is the statistical relationship between an advanced paternal age and sperm or semen abnormalities, fertility, pregnancy outcomes, birth outcomes (such as birthweight), pr...
Semen analysis
A semen analysis (plural: semen analyses) evaluates certain characteristics of a male's semen and the sperm contained therein. It is done to help evaluate male fertility, whether for those seeking pr...
Semen analysis - Wikipedia
Semen quality
Semen quality is a measure of the ability of semen to accomplish fertilization. Thus, it is a measure of fertility in a man. It is the sperm in the semen that are of importance, and therefore semen qu...
Semen collection
Semen collection refers to the process of obtaining semen from male humans or other animals with the use of various methods, for the purposes of artificial insemination, or medical study (usually in f...
Hamster zona-free ovum test
The hamster zona-free ovum test (HZFO test), or hamster test is a method for diagnosing male infertility due to the inability of the sperm to penetrate the ova. This test has limited value for most pe...