One in 4 pregnancies of a normal woman ends in first trimester abortion. It is a relatively frequent situation, therefore, but one that generates a great deal of concern in patients. In women over 35 years of age, the fundamental cause is chromosomal, that is to say, a genetic alteration of the embryo that hinders its implantation or evolution, fundamentally due to maternal age.
After having had one miscarriage, the risk of suffering another is 20%, but if you have had three or more, the risk increases to 45%.
There is really nothing to prevent this from happening, although it is important to maintain healthy habits, go regularly to gestational check-ups and take vitamin supplements. It is essential to try to overcome the upset and resume trying a couple of cycles after the miscarriage.