Microscopical appearance of cervical mucus after ovulation is:
Shows pattern on drying
Is thick
Is thin and cellular
Is thin and alkaline
The fern test can determine the presence or absence of ovulation or the time of ovulation. When cervical mucus is spread on a clean, dry slide and allowed to dry in air, it may or may not assume a frondlike pattern when viewed under the microscope. The fern frond pattern indicates an estrogenic effect on the mucus without the influence of progesterone; thus, a non-frondlike pattern can be interpreted as showing that ovulation has occurred. Progesterone makes the mucus thick and cellular. Ref: Kawada C., Hochner-Celnikier D. (2013). Chapter 35. Gynecologic History, Examination, & Diagnostic Procedures. In A.H. DeCherney, L. Nathan, N. Laufer, A.S. Roman (Eds), CURRENT Diagnosis & Treatment: Obstetrics & Gynecology, 11e.