| Reason |
Description |
| Age of woman |
The quality of eggs decreases with age, making it more difficult for fertilization to occur successfully. |
| Sperm quality |
Poor sperm quality can lead to fertilization difficulties and make it more difficult for embryos to reach the uterus or implant successfully. |
| Embryo quality |
Not all embryos have the same quality, and some may not be viable for successful implantation. Factors such as genetic abnormalities or poor development can contribute to IVF failure. |
| Genetic and chromosomal causes |
Abnormal numbers of chromosomes in the embryo or an imbalance of chromosomes can prevent successful implantation, as well as lead to miscarriages or other pregnancy complications. |
| Uterus health |
The uterus needs to be receptive and capable of supporting the growth of an embryo for implantation to occur. Issues such as uterine abnormalities, fibroids, or scar tissue can hinder successful implantation, leading to IVF failure. |
| Lifestyle factors |
Smoking, excessive alcohol consumption, and being overweight or underweight can all have a negative effect on fertility and IVF outcomes. |
| Choosing reputable clinic |
Choosing a reputable clinic with a proven track record can make a significant difference in the outcome of the procedure. |
| Problems with egg retrieval and embryo transfer |
Complications can occur during these steps due to improper technique, incorrect timing, or other issues. |