The number of follicles during ovulation is only 0.4. This is a very rare situation, but it can happen. When a girl ovulates, her ovaries begin to produce small eggs, which mature and are usually released within 24 hours. However, sometimes these eggs develop mutations that prevent them from maturing or being released properly. In this case, the eggs may remain in the ovaries for a long time, even up to several months.

If a woman produces eggs that are only 0.4 in size during ovulation, this situation may have an impact on the woman's fertility. In this case, a woman may need special treatment, such as medications or surgery to promote egg maturation and release. In addition, women need to pay close attention to changes in their bodies to ensure that their bodies remain healthy.

In summary, although this condition is very rare, women should pay close attention to their physical health to ensure that they stay healthy during ovulation. If a woman experiences any abnormal symptoms during ovulation, she should consult a doctor promptly for correct diagnosis and treatment.