Can Ferning indicate pregnancy?

For decades, scientists have known that if a woman’s saliva forms a telltale “ferning” pattern – a bit like frost crystals under the microscope – it is the time of month when she is most likely to get pregnant.

What does a positive Ferning test mean?

The proteins and saline content of amniotic fluid crystallize on a slide when dry yielding the appearance of ferns. A positive test shows the presence of fern-like patterns characteristic of amniotic fluid crystals.

What does Ferning mean in ovulation?

When high levels of estrogen are present, such as just before ovulation (or during pregnancy), the cervical mucus forms fern-like patterns due to crystallization of sodium chloride on mucus fibers. This pattern is known as arborization or ‘ferning’.

Is Ferning accurate?

Results: Salivary ferning test by KNOWHEN ovulation microscope is accurate method of detecting ovulation. Its accuracy was 86.5%. Conclusions: Salivary ferning test is a reliable test to detect fertile period of menstrual cycle.

How do you check for Ferning?

Amniotic fluid contains a high amount of a salt called sodium chloride. If drops of the fluid are spread on a glass slide, allowed to dry, and examined through a microscope, a characteristic palm leaf pattern can be seen. This is why it is sometimes called “arborization” or the fern test.

What does no Ferning mean?

A. If you never see ferning it means that you are not using the Ovatel mini-microscope correctly; or you may have a hormone imbalance which is leading to your body not producing enough estrogen (see hormone imbalance below) or you are not ovulating.

Does blood affect Ferning?

We conclude that the presence of blood may alter the morphology of the fern, but does not act as a contaminant that would affect the accuracy of the test.

Can a fern test be wrong?

Fern test has also 13-30% false negative and 5-30% false positive results (13, 14). “Several studies have been conducted to find a definite, easy, noninvasive and reliable diagnostic test for PROM in recent years” (18). These studies have mainly focused on biochemical agents with high concentration in amniotic fluid.