Is a follicle measuring 22 × 18 mm considered a high-quality follicle?
Jun 04, 2026
Source: Cainiu Health
Dr. Zhang Lu
Introduction
Under normal circumstances, a follicle measuring 22 × 18 mm is considered high-quality. During the preconception period, maintain a regular sleep-wake schedule and avoid staying up late to ensure stable endocrine function. Follow a nutritionally balanced daily diet, supplementing适量 protein, vitamins, and trace elements to provide adequate nutrients for follicular development. Engage in gentle, moderate physical activity.
Generally, a follicle measuring 22 × 18 mm is considered high-quality. A detailed explanation follows:
In women of childbearing age, the normal diameter range for a mature follicle is 18–25 mm. Follicles within this size range typically exhibit a round, full shape and follow a regular developmental pattern. Their internal structure is fully developed, containing an adequate volume of follicular fluid, enabling normal ovulation. The oocyte released is mature and highly viable, meeting the criteria for normal fertilization—thereby significantly increasing the likelihood of conception. This represents an ideal follicular state during preconception planning.
During the preconception period, maintain a regular sleep-wake schedule and avoid staying up late to ensure endocrine stability. Follow a nutritionally balanced diet, incorporating moderate amounts of protein, vitamins, and trace elements to support optimal follicular development. Engage in gentle, moderate physical activity to regulate metabolism, maintain emotional calmness, and monitor follicular development regularly—thus facilitating successful conception.
