| Causes for female infertility |
| Hormonal disorders |
| Ovulatory |
| Obstructed or dysfunctional fallopian tubes |
| Endometriosis |
| Abnormalities in shape, function and/or secretion of cervix |
| Infection of reproductive organs |
| Immunological |
|
| Causes for male infertility |
| Suboptimal sperm count, motility and morphology; azoospermia |
| Blocked vas deferens |
| Retarded spermatogenesis |
| Sexual dysfunction: incompetence, premature ejaculation |
| Infection of reproductive organs |
| Hormonal disorders |
| Immunological |
|