The causes of biochemistry in 15 days of IVF transplantation may be mental anxiety, environmental factors, uterine abnormality, luteal insufficiency and so on.
1. Mental anxiety: after embryo transfer surgery, some patients experience anxiety and tension due to high mental stress, which affects the embryo’s implantation, thus leading to biochemical pregnancy.
2. Environmental factors: If the embryos are exposed to harmful chemicals such as formaldehyde and rays after the embryo transfer, it may lead to the embryos not being able to implant normally, thus leading to biochemical pregnancy.
3. Abnormalities of the uterus: the patient’s own endometrium is too thick, too thin, or uterine deformities, uterine adhesions, polyps, etc., may lead to the transfer of embryos can not be normal implantation, thus leading to biochemical pregnancy.
4. Luteal insufficiency: mainly due to luteal insufficiency, resulting in low progesterone secretion, which leads to the occurrence of biochemical pregnancy.
If biochemical pregnancy occurs, in addition to the above reasons, the poor quality of fertilized eggs is also possible, and some can not find the reason, you should consult a doctor for examination in time.