According to a new research, females making attempts to have a baby after 35 years are six times more likely to fertility problems as compared to those ten years younger.

As per a major research from the Royal College of Obstetricians and Gynaecologists, the elder parents are making it more difficult for themselves to have kids and raising the probability of grave medical problems for both mother as well as infant.

By 40, a female is more likely to have a spontaneous abortion than give birth.

Men's fertility also drops speedily from 25 and the physicians guess that the average 40-year-old takes two years to make his wife pregnant - even if she is in her 20s.

According to the numbers in the report by the Royal College, around 30% of 35-year-old females take more time than a year to become pregnant as compared to only 5% of 25-year-olds,.

Hopeful mothers in their late 30s and 40s are far more likely to have problems like as preeclampsia, ectopic gestation, spontaneous abortion or stillbirth and they are also more likely to need a Caesarean.

Kids born to them are more likely to be untimely, smaller or have mongolianism and other genetic troubles.

David Utting, specialty registrar in obstetrics and gynaecology at Kingston Hospital NHS Trust and co-author of the review, stated, "Clear facts on fertility need to be made available to women of all ages to remind them that the most secure age for childbearing remains 20-35."

The results of the research have been released in the medical journal Obstetrician and Gynaecologist.