By Dr. Victoria Verdú (Licensed Gynaecologist No. 282847366).
Ovarian follicles are small structures within the ovary that contain an oocyte (an immature egg) surrounded by cells that nourish it and help it mature.
We can imagine them as microscopic “sacs” where eggs develop. Each follicle includes: the oocyte (the future female reproductive cell); granulosa cells, which nourish it; theca cells, which produce hormones; and follicular fluid when the follicle matures.
The number, size, and development of these follicles are key parameters for achieving pregnancy, both naturally and through assisted reproductive techniques.
They are small fluid-filled structures located in the ovaries that contain an immature oocyte inside. Each of these follicles acts as a kind of “capsule” that protects and nourishes the egg while it matures.
Women are born with all the oocytes they will have throughout their lives. During the reproductive years, many of these oocytes begin their development, but only a small proportion will complete the maturation process. In fact, during each menstrual cycle several follicles begin to grow under hormonal influence, although usually only one reaches the ovulatory stage.
This depends on each woman and her age. To count them, a transvaginal ultrasound is performed at the beginning of the menstrual cycle to observe the so-called antral follicles—small fluid-filled sacs that contain immature eggs and serve as an indicator of ovarian reserve. As a general reference:
This count is not interpreted in isolation, but together with other hormonal tests and the patient’s age.
Micrograph of the human ovary showing Graafian follicle containing secondary oocytes.
Follicular development is a complex process that occurs in several stages:
During the first days of the menstrual cycle, several follicles begin to develop in the ovaries. As the days pass, one of them usually becomes dominant and is known as the dominant follicle, which will ultimately release the oocyte during ovulation, while the remaining follicles undergo atresia and are reabsorbed.
Throughout this process, the follicle gradually increases in size. At the beginning they usually measure between 2 and 10 millimeters, but as the cycle progresses the dominant follicle may reach between 18 and 24 millimeters before the release of the oocyte (ovulation).
In assisted reproduction treatments, the situation is different. Instead of a single follicle maturing, specialists use hormonal medication to stimulate the growth of several follicles at the same time (all those recruited by the ovary for that cycle), with the aim of obtaining multiple oocytes in a single cycle and thereby increasing the chances of treatment success.
The study of ovarian follicles provides very important information about ovarian function and a woman’s reproductive capacity at the time of evaluation. Medical specialists use several parameters to guide fertility treatments, including the number of available follicles, their development during the cycle, and their response to hormonal stimulation.
For this reason, follow-up ultrasounds and follicle counts are an essential part of reproductive evaluation and make it possible to tailor treatments to each patient’s characteristics. In assisted reproduction, every case is unique and there is no universal formula for achieving a positive result. That is why personalization and a detailed assessment of each case are key to the entire process.
Privacy Policy
IVF-LIFE, hereby informs you of its privacy policy applied to personal data. The use of the website does not imply that the user must provide any information regarding their identity, and cannot be associated with a specific user by the company. In the event that personal data is provided, this data will be collected and used in accordance with the limitations and rights set out in the aforementioned regulation.
WHO IS RESPONSIBLE FOR THE PROCESSING OF YOUR DATA?
DATA CONTROLLER: IVF SPAIN ALICANTE S.L.U (hereinafter IVF-Life)
CIF: B-54973227
Postal Address: Avenida de Ansaldo, no. 13, 03540, Alicante (Alicante)
Contact with the Data Protection Officer: dpo@ivf-life-group.com
DATA CONTROLLER: Instituto Vasco de Fertilidad (hereinafter IVF-Life)
CIF: B95575874
Postal Address: Avenida de Tolosa, 71-73, 20018 Donostia / San Sebastián (Spain)
Contact with the Data Protection Officer: dpo@ivf-life-group.com
DATA CONTROLLER: IVF Spain Madrid (hereinafter IVF-Life)
CIF: B 85138113
Postal Address: C/ de Manuel de Falla, 6-8, 28036 Madrid (Spain)
Contact with the Data Protection Officer: dpo@ivf-life-group.com
WHAT TYPE OF DATA DO WE PROCESS?
Depending on the products, services, or functionalities that you wish to enjoy, we may need to process different types of data. In general, this data will be, depending on the case, the following:
- Your identification data: for example: name, surname, language, country from which you interact with us, contact details, etc.
- Connection, geolocation and navigation data.
- Commercial information if you are subscribed to our newsletter.
- Data about your tastes and preferences.
WHAT IS THE ORIGIN OF THE DATA?
The use of certain services or requests addressed to IVF-LIFE are subject to the prior completion of the corresponding form. All the information provided by the User through the forms on the Portal for the above purposes or any other must be truthful.
To this end, the User guarantees the authenticity of all the data provided and will keep the information provided to IVF-LIFE perfectly up to date so that it corresponds at all times to the User's real situation. In any case, the User will be solely responsible for any false or inaccurate statements made and for any damage caused to IVF-LIFE or third parties because of the information provided.
By clicking on the "send" button on the corresponding form, the User expressly consents to his/her data being used to send professional communications about his/her query by e-mail or by any other means.
However, the User may revoke the consent given and oppose the sending of such communications in each of the communications received or by sending them to the address indicated in this legal notice and enabled for this purpose. Likewise, in each of the communications sent, the procedure for opposing the sending of new professional communications shall be expressly indicated.
Users who provide personal data of other natural persons are obliged to comply, in relation to said data, with all obligations deriving from the data protection regulations in force, and in particular the duty to inform and obtain the consent of the owner of the personal data.
When we request your personal data to provide access to certain website functionalities, we will mark the required fields to ensure the service can be delivered.
Please note that if you choose not to provide us with this data, you may not be able to complete your registration as a user or you may not be able to enjoy those services or functionalities.
For the processing of data, IVF-LIFE adopts the security levels required by current European and national legislation on the Protection of Personal Data. Notwithstanding the above, technical security in a medium such as the Internet is not impregnable and there may be leaks due to the malicious actions of third parties.
Our services are aimed at people of legal age, in the event that some of our services are specifically aimed at minors, IVF-LIFE will request the consent of parents or guardians for the collection of personal data or, where appropriate, for the automated processing of data as set out in current legislation. If the User is a minor, they are required to have the prior consent of their parents or guardians before proceeding to the inclusion of their personal data in the forms on the Website.
Initially, your personal data are provided directly by you, but in certain cases they may originate from centres, referring doctors and public health systems with which there is collaboration.
FOR WHAT PURPOSES DO WE PROCESS YOUR PERSONAL DATA?
Depending on how you interact with our website, we will process your personal data for the following purposes:
To deal with requests or requests that you make through the different means incorporated into our website.
We only process the personal data that is strictly necessary to manage or resolve your request or application.
For marketing purposes
To the extent that you subscribe to our newsletter, your personal data will be used for the periodic sending of company newsletters.
You should remember that you can unsubscribe from the newsletter, at any time and free of charge, by contacting us via the e-mail address of the data controller or by following the instructions that we will provide you with in each of our communications.
For the management of social networks
If you follow us or contact us through the different social networks in which we are present, we will process the data that you provide to us through these for the sole purpose of responding to your messages or comments and managing our contact list.
Usability and quality analysis to improve our services (cookies).
If you access our platform, we inform you that we will process your browsing data for analytical and statistical purposes, i.e. to understand how users interact with our platform and thus be able to make improvements to it. Likewise, we sometimes carry out quality actions and surveys aimed at finding out the degree of satisfaction of our customers and users and detecting those areas in which we can improve.
WHAT IS THE LEGAL BASIS FOR PROCESSING YOUR DATA?
The legal basis that allows us to process your personal data also depends on the purpose for which we process them, so we will find different legal bases under the following purposes:
Attention to requests for information.
The legal basis for the processing of your data is the informed consent to respond to queries raised through the website, forms and other means provided, which implies the prior reading and acceptance of these conditions by the interested party.
Marketing
The legitimate basis for processing your data for marketing purposes is the consent you provide.
Social networking
The basis of legitimacy is the informed consent to respond to queries raised through the social network, as well as the time when you follow us and want to be part of our contact list.
Usability and quality analysis (cookies)
User consent to the use of cookies.
HOW LONG WILL WE KEEP YOUR DATA?
Request for information. We will process your data for as long as it is necessary to deal with your request or request and thereafter 1 year.
Marketing
We will process your data until you unsubscribe or cancel your subscription to the newsletter.
Social media
We will process your data for as long as it is necessary to deal with your request and for as long as you are a follower of our profile.
WILL WE SHARE YOUR DATA WITH THIRD PARTIES?
Personal data will not be transferred or communicated to third parties, except: legal obligation, we obtain your express consent, or we understand that there is a legitimate interest on our part, which will be duly communicated to you.
However, we inform you that we are present in the following social networks: Facebook, LinkedIn, Instagram and YouTube, to keep our followers informed regarding the company's news and services.
You can access these social networks voluntarily and through the links available on the website itself or by accessing directly and on your own from your browser or installed app.
You should know that this website is not responsible for the use of the data that these social networks may make. However, when these data are generated in the social network and derive from an interaction with our website, we will not be held responsible for the use of such data.
In order to consent to our transfer from this website and the processing of your data, you should carefully read the privacy policy of the social network you wish to access:
Facebook: Facebook Privacy Policy
Instagram: Instagram Privacy Policy
LinkedIn: Linkedin Privacy Policy
YouTube: Youtube Privacy Policy
Spotify: Spotify Privacy Policy
In this way, before clicking on the logos of the SS. RR. present on our website, you can inform yourself and make a redirection with prior knowledge of the processing of your data and on a voluntary basis.
Other technological services:
- WhatsApp: WhatsApp Privacy Policy
- Companies of the "IVF LIFE Group" on the legal basis of consent or legitimate interest: Instituto Vasco de Fertilidad S.L.U., with NIF B95575874 and address at Avda Tolosa, 71-73 Donostia (Gipuzkoa), and IVF Spain Madrid S.L., with NIF B85138113 and address at Calle Manuel de Falla, 6-8, 28036 Madrid.
WHAT ARE YOUR RIGHTS WHEN YOU PROVIDE US WITH YOUR DATA?
We undertake to respect the confidentiality of your personal data and to guarantee you the exercise of your rights.
You may exercise them free of charge by sending us an e-mail to our address above, simply by providing proof of identity, the reason for your request and the right you wish to exercise.
If we consider it necessary in order to identify you, we may ask you for a copy of a document proving your identity. In particular, regardless of the purpose or the legal basis on which we process your data, you have the right to:
Ask us for access to the data we hold about you.
Ask us to rectify the data we already hold about you. Please note that by actively providing us with your personal information in any way, you warrant that it is true and accurate and you undertake to notify us of any changes or modifications to it.
Ask us to delete your data to the extent that they are no longer necessary for the purpose for which we need to process them as we have previously informed you, or to the extent that we no longer have the legitimacy to do so.
Ask us to restrict the processing of your data, which means that in certain cases you may ask us to temporarily stop processing the data or to keep it longer than necessary when you may need it. If you have given us your consent to process your data for any purpose, you also have the right to withdraw your consent at any time.
To receive the personal data concerning you that you have provided to us in a structured, commonly used and machine-readable form and to transfer it to another data controller.
Moreover, where the processing of your data is based on our legitimate interest, you also have the right to object to the processing of your data.
Finally, we inform you of your right to lodge a complaint with the relevant data protection supervisory authority, with the Spanish Data Protection Agency.
CHANGES TO THE PRIVACY POLICY
We may change the information contained in this Privacy Policy from time to time. If we do so, we will notify you by various means through the Platform, or we will notify you at your email address when the change in question is significant to your privacy, so that you can review the changes, assess them and, where appropriate, object to or unsubscribe from any service or functionality.
INFORMATION ABOUT COOKIES
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