How to test follicles in the hospital: a comprehensive analysis of the testing methods and procedures
Follicle monitoring is an important part of female reproductive health assessment and assisted reproductive technology. Observing the development of follicles through ultrasound examination and other means can help doctors determine the time of ovulation, guide conception or treat infertility. The following are follicle testing methods commonly used in hospitals and precautions.
1. Commonly used methods for follicle monitoring
| Detection method | principle | Applicable scenarios | advantage | shortcoming |
|---|---|---|---|---|
| Vaginal B-ultrasound | High-frequency probe for close observation of ovaries through vagina | Menstrual cycle begins on day 8-10 | Clear image, no radiation | Need to avoid menstrual period operations |
| Abdominal B-ultrasound | Scan through abdominal skin | Unmarried women or special circumstances | Non-invasive and painless | Need to hold urine, low resolution |
| Hormone level testing | Draw blood to check for LH, E2 and other hormones | Judgment based on B-ultrasound results | Quantifying follicle maturity | Requires multiple blood draws |
2. Standard process of follicle monitoring
1.Initial evaluation: The doctor will ask about menstrual history and reproductive history, and it is recommended to start basic examination from the 3rd day of the menstrual cycle.
2.Periodic monitoring table:
| Cycle days | Follicle size standard (mm) | Hormone reference value |
|---|---|---|
| 3-5 days | <10 | FSH:3-10mIU/ml |
| 8-12 days | 10-18 | E2:50-200pg/ml |
| before ovulation | 18-25 | LH peak ≥40mIU/ml |
3.Monitoring frequency:
3. Precautions
1.Best detection time: It is recommended to check at 8-10 am to avoid diet affecting hormone levels.
2.Data interpretation: Mature follicles usually have a diameter of 18-25mm, and the thickness of the endometrium needs to be 8-12mm.
3.abnormal situation:
| Exception type | Possible reasons | Handling suggestions |
|---|---|---|
| follicles underdevelopment | Polycystic ovary/endocrine disorders | Drugs to induce ovulation |
| luteinized unbroken | Insufficient LH peak | Triggered by HCG injection |
4. Comparison of testing in different hospitals
| hospital type | Testing equipment | Single cost (yuan) | Features |
|---|---|---|---|
| tertiary hospital | 4D ultrasound | 150-300 | Expert interpretation report |
| Specialist Reproductive Center | dynamic monitoring system | 200-500 | Full tracking service |
5. Hot questions and answers
Q: How many times do follicle monitoring need to be done?
A: It usually takes 3-5 times, starting from the 10th day of menstruation until ovulation is confirmed.
Q: Does B-ultrasound monitoring have an impact on follicles?
A: Ultrasound is a physical sound wave, and regular operation will not affect the quality of follicles.
Summarize: Scientific follicle monitoring can significantly increase the chance of pregnancy. It is recommended to choose a hospital with a reproductive medicine department and cooperate with the doctor to develop a personalized plan. The latest data shows that under standardized monitoring, the natural pregnancy rate can be increased to 30%-40%, and the ovulation induction cycle can reach 50%-60%.
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