Usually refers to a low sperm count or problems with sperm function that make it difficult for a sperm to fertilize an egg under normal conditions. Male factor infertility may involve an inability to ejaculate, the presence of a varicocele, cryptorchidism (failure of one or both testicles to descend into the scrotum), or chromosome abnormality, vas deferens obstruction or exposure to environmental toxins or drugs.
Any cause of infertility due to low sperm count or problems with sperm function that make it difficult for a sperm to fertilize an egg under normal conditions.
Problems with sperm production can be classed together as Male Factor infertility. These may include low sperm count, high levels of abnormal sperm, problems with swimming patterns, a vasectomy or failed vasectomy reversal or blockages.
When the male sperm is below normal limits and special techniques are required to prepare the semen for fertilisation.
Any cause of infertility due to deficiencies in sperm quantity or that make it difficult for a sperm to fertilize an egg under normal conditions.
Infertility caused by a problem in the male partner such as the inability to ejaculate or suboptimal semen quality of sperm preventing pregnancy from occurring; it might include the presence of a varicocele, cryptorchidism, chromosomal abnormality, vas deferens obstruction and exposure to environmental toxins or drugs.
Deficiencies in sperm quantity, function, or motility (ability to move) that make it difficult for a sperm to fertilize an egg under normal conditions.
In 40 percent of infertile couples, the male partner is either the sole or contributing cause.
Infertility as a result of a defect in the male partner. ( more...)