What is Follicular Monitoring Ultrasound?

by | May 15, 2023 | Pregnancy

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What is Follicular Monitoring?

Follicular Monitoring Ultrasound

Follicular Monitoring Ultrasound

Follicular monitoring is a series of ultrasound scans used to examine the ovarian follicles. These follicles contain eggs that, once matured and released, can be fertilized. Think of it as a close-up view of your reproductive system backstage, enabling doctors to track the star of the show – the egg – as it prepares for its grand performance.


Why is Follicular Monitoring Done?

Follicular monitoring helps doctors ensure optimal conditions for conception. It allows them to determine the precise size and growth rate of the follicles, ascertain the best time for ovulation or egg retrieval, and monitor the body’s response to fertility drugs. This procedure brings a degree of predictability and control to the somewhat elusive process of conception.


Who Requires Follicular Monitoring Treatment?

It’s primarily used for women undergoing fertility treatments like Intrauterine Insemination (IUI) or In Vitro Fertilization (IVF). However, it can also be beneficial for those experiencing irregular menstrual cycles or those with unexplained infertility. If you’re still unsure whether follicular monitoring is for you, it’s best to discuss this with your healthcare provider.


When is Follicular Monitoring Necessary?

The timing of follicular monitoring is crucial. It generally begins on the second or third day of the menstrual cycle and continues until the follicle is matured, typically around the 14th day in a 28-day cycle. This timing may vary based on individual variations and specific treatment protocols. Much like waiting for the perfect moment to snap a photograph, timing in follicular monitoring is everything.


Who Needs Follicle Tracking?

Anyone undergoing fertility treatments such as Intrauterine Insemination (IUI) or In Vitro Fertilization (IVF) can benefit from follicle tracking. It’s like having a roadmap for a journey – it points you in the right direction and shows you how far you’ve come.

Moreover, it can also be useful for those with irregular menstrual cycles or unexplained infertility. Like a detective on the trail of a mystery, follicular monitoring can help uncover hidden clues about your fertility status.

 Also Read: Follicular Study Scan

How is Follicular Monitoring Done?

The process involves a series of ultrasound scans that allow your doctor to observe the development of the follicles in your ovaries. Imagine it as a sort of ‘reality show’ where the star is your egg, and the audience is the team of medical experts rooting for a successful performance.

These ultrasound scans typically start on the second or third day of your menstrual cycle and continue until the mature follicle is ready for ovulation or retrieval, usually around the 14th day in a regular 28-day cycle. It’s akin to watching a flower bloom – day by day, you see the changes until it’s finally ready to reveal its full beauty.


How to Interpret Follicular Monitoring Report?

The report typically includes the size and number of follicles in each ovary and the thickness of the endometrium (uterine lining). The magic happens when the dominant follicle (the one that will release the egg) reaches a size of around 18-24mm, and the endometrium is ideally between 7-14mm thick – this is when conditions are ripe for conception.


What is the Follicular Monitoring Normal Range?

In a typical cycle, one can expect to see a dominant follicle that grows about 1-3mm per day, reaching a diameter of 18-24mm at maturity. The endometrial thickness should ideally be in the range of 7-14mm for successful implantation. It’s like hitting the bullseye in a dart game – hitting these numbers means you’re on target.


Can Follicular Monitoring Confirm Pregnancy?

Follicular monitoring, akin to a reality TV show spotlighting your ovarian follicles, can provide invaluable insights into your fertility status. However, it’s important to note that it’s not a direct method to confirm pregnancy.

Think of follicular monitoring as a diligent gardener who tracks the growth of a seed, but can’t confirm if it will turn into a full-fledged plant. While follicular monitoring provides details about the growth and release of the egg, it does not confirm if the egg has been fertilized and implanted – the critical steps towards pregnancy.


Success Rate of Follicular Monitoring

Follicular monitoring has been a game-changer in fertility treatments, leading to significantly improved success rates. It’s like having a GPS for your fertility journey, providing real-time data to help your healthcare provider make informed decisions about timing and treatment strategies.

While exact success rates vary depending on individual health factors and the type of fertility treatment used, follicular monitoring is universally acknowledged as a crucial tool that boosts the chances of conception.


Side Effects of Follicular Monitoring

Every medical procedure has potential side effects, and follicular monitoring is no exception. However, compared to a rollercoaster ride, it’s more like a gentle carousel. The procedure, which involves ultrasound scans, is non-invasive and generally safe.

Minor discomfort or anxiety might accompany the procedure, but serious side effects are rare. Remember, the ride is worth it for the invaluable insights it provides.


Benefits of Follicular Monitoring

The benefits of follicular monitoring are vast, It allows you to plan, observe, and make necessary changes, ultimately guiding you toward creating your masterpiece – a successful pregnancy.

Follicular monitoring enables personalized treatment strategies, precise timing for procedures, and the ability to monitor the body’s response to fertility drugs. It gives both you and your healthcare provider a detailed look at your fertility landscape, making it an invaluable tool in the journey toward parenthood.


What is the cost of a Follicular Ultrasound?

The cost of Follicular Ultrasound ranges from ₹ 1,000 to ₹ 3,000 per scan. The cost of follicular monitoring or follicular ultrasound varies widely in India based on several factors such as location, the reputation of the clinic or hospital, and the number of scans needed.


Since follicular monitoring usually requires multiple scans in a single cycle, the total cost for a complete cycle could range from ₹ 3,000 to ₹ 15,000, depending on the number of scans required. It’s always advisable to discuss the cost with your healthcare provider to get an accurate estimate based on your specific situation.



Q: Is follicular monitoring painful?

A: Follicular monitoring is generally not a painful procedure. It involves regular ultrasounds to track the growth and development of follicles in the ovaries, which is done externally on the abdomen or internally through the vagina. The process is typically discomfort-free, although some women may experience mild discomfort or pressure during the procedure.

Q: What should be the size of the follicle to get pregnant?

A: The size of the follicle plays a crucial role in fertility and the chances of getting pregnant. Typically, a mature follicle that is ready for ovulation measures around 18-25 millimeters in diameter. This size indicates that the egg is fully developed and ready to be released for fertilization.

Q: When should follicle monitoring be done?

A: Follicle monitoring, also known as follicular tracking or follicular study, is usually performed during a woman’s menstrual cycle to track the growth and development of follicles. The monitoring process typically begins on the second or third day of the menstrual cycle and continues with regular ultrasounds every few days until the dominant follicle reaches maturity.

Q: What size should a follicle be at 12 days?

A: By the 12th day of the menstrual cycle, a healthy follicle should ideally measure around 16-20 millimeters in size. This indicates that the follicle is growing and developing appropriately, and it is nearing its final stages of maturation before ovulation.

Q: How many follicles are on day 14?

A: On the 14th day of the menstrual cycle, it is common for a woman to have a dominant follicle, which means that one follicle has become the largest and most mature among the others. However, the number of follicles can vary from person to person, and it is possible to have multiple smaller follicles present alongside the dominant one.

Q: How much does a follicle scan cost?

A: The cost of a follicle scan or follicular monitoring can vary depending on various factors such as the geographic location, healthcare provider, and additional services included. It is recommended to check with your healthcare provider or fertility clinic to get accurate information regarding the cost involved.

Q: How many days is a follicular study done?

A: Follicular study, or follicle monitoring, is typically performed over the course of a woman’s menstrual cycle. The monitoring process begins on the second or third day of the cycle and continues with regular ultrasounds every few days until the dominant follicle reaches maturity. This process usually spans several weeks.

Q: Is it hard to get pregnant in the follicular phase?

A: The follicular phase of the menstrual cycle is generally considered the most fertile period for women. During this phase, follicles in the ovaries mature, leading to ovulation and the release of an egg. The chances of getting pregnant are typically higher during this phase as it is the time when the egg is available for fertilization. However, individual fertility can vary, and it is important to consider other factors that may impact fertility as well.

Q: Can you conceive with one follicle?

A: Yes, it is possible to conceive with one mature follicle. Ovulation occurs when a mature follicle releases an egg, which can then be fertilized by sperm. While multiple follicles increase the chances of releasing multiple eggs and potentially having multiple pregnancies (e.g., twins), a single mature follicle can still result in a successful pregnancy.

Q: What size follicle is day 15?

A: On the 15th day of the menstrual cycle, a mature follicle that is ready for ovulation is typically around 18-25 millimeters in size. This size indicates that the follicle has developed and is nearing the point of releasing an egg.

Q: Which ovary is best for pregnancy?

A: Both ovaries have the potential to release a mature egg and support pregnancy. The ovary from which the egg is released during a particular menstrual cycle does not determine the likelihood of pregnancy. It is important to note that ovulation can alternate between the two ovaries from cycle to cycle.

Q: Can I eat before the follicular scan?

A: It is generally recommended to have a light meal or snack before a follicular scan. A full bladder is not required for this type of ultrasound, unlike other abdominal ultrasounds. However, it’s a good idea to follow any specific instructions provided by your healthcare provider or clinic regarding eating or drinking before the follicular scan.

Q: How can I prepare for a follicular study?

A: To prepare for a follicular study or scan, you may be advised to schedule the appointment based on your menstrual cycle. It is also helpful to wear comfortable clothing that allows easy access to the abdomen or vaginal area for the ultrasound. Following any specific instructions given by your healthcare provider, such as fasting or avoiding certain medications, is also important.

Q: How can I increase my follicle size naturally?

A: While natural methods cannot guarantee significant changes in follicle size, some lifestyle factors may support healthy follicle development. These include maintaining a balanced diet, managing stress levels, getting regular exercise, and ensuring adequate rest and sleep. It’s essential to consult with a healthcare provider or fertility specialist for personalized advice.

Q: How much can a follicle grow in 1 day?

A: Follicle growth rates can vary, but on average, a healthy follicle grows around 1-3 millimeters per day. However, it’s important to note that growth rates can be influenced by various factors, and individual variations are possible.

Q: At what size will an egg rupture?

A: The rupture of an egg, known as ovulation, generally occurs when the follicle reaches a size of around 18-25 millimeters in diameter. This size indicates that the follicle is mature and ready to release the egg for potential fertilization.

Q: How many eggs are in one follicle?

A: Normally, there is only one egg contained within each mature follicle. However, it is possible to have more than one follicle develop and release eggs during a menstrual cycle, which can increase the chances of having multiple eggs available for fertilization.

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    Dr Mona Dahiya

    Dr Mona Dahiya

    IVF Specialist & Consultant

    Dr Mona Dahiya has performed over 5,000+ IVF cycles and is considered a global expert in IVF, ICSI, IUI and male fertility treatment. She is an eminent writer on Infertility Treatment and has over 100 Publications in both International and National Journals. Dr Mona Dahiya has immensely contributed to the field of infertility through her Research and articles.

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