Is a follicle measuring 18×15 mm considered a high-quality follicle?

Under normal circumstances, an 18×15mm follicle is considered close to high quality and has the potential for fertilization, but it does not fully meet optimal standards. A comprehensive assessment should include evaluation of morphology and growth rate. Specific analysis is as follows:

High-quality follicles typically have a diameter between 18–25mm, exhibit a full, round or oval shape, and display uniform internal echogenicity. An 18×15mm follicle meets the size requirement, although its shape is slightly suboptimal. If it continues to develop and achieves a more rounded appearance in the short term, it can meet the criteria of a high-quality follicle, without affecting normal ovulation and fertilization.

If the follicle remains persistently flattened in shape, or shows slow or stalled growth, its fertilization potential may be compromised, indicating that it is not a fully high-quality follicle. Such conditions may be related to hormonal fluctuations or ovarian functional status, and require continuous monitoring of follicular development for accurate assessment.

During follicular monitoring, it is recommended to maintain regular作息 (daily routines), avoid staying up late and excessive fatigue, and consume a diet rich in protein and vitamins to provide adequate nutrition for follicle development.