• English
Birla Fertility & IVF
Birla Fertility & IVF

Ovary size: How important is the size of ovaries for pregnancy?

  • Published on April 26, 2022
Ovary size: How important is the size of ovaries for pregnancy?

When trying to conceive, there are numerous factors to consider beyond the basics like tracking basal body temperature and signs of ovulation. One crucial yet often overlooked aspect is the ovaries’ size. Though, the normal ovary size for pregnancy typically ranges from 1 to 3 cm in diameter.  Along with the size of the ovaries, their health determines your fertility and chances of getting pregnant.

In this article, let’s explore the importance of ovary size for pregnancy, how it is determined, different ranges of ovary size and factors that can affect it.

Importance of Ovary Size For Pregnancy

Ovaries are oval-shaped small glands responsible for the production and release of eggs (also known as oocytes). They are located on both sides of the uterus and also regulate in producing the estrogen and progesterone hormones. Along with ovaries, the female reproductive system also includes multiple organs such as the vagina, uterus, fallopian tubes, and cervix. Refer to the below table to understand how the ovary size and function change throughout a woman’s life cycle, along with approximate size measurements at different stages:

Phases Ovary Size Size Measurement Function
Childhood Small Less than 1 cm Ovaries are dormant (not active)
Puberty Enlarges 1-3 cm Begin to produce hormones, initiate ovulation
Reproductive Medium/Large 2-5 cm Regular ovulation, hormone production
Menopause Decreases Less than 1 cm Ceases ovulation, declines hormone production

Note: These are standard measurements which may vary from one woman to another based on several factors such as genetics, lifestyle and underlying health conditions. 

How to determine the Ovary size for Pregnancy? 

With the help of diagnostics; blood tests and ultrasound scans, the fertility expert analyses the ovaries’ health and quality to determine your ovary size for pregnancy. If it is less than the average ovary size required for pregnancy, the doctor will detect the root cause to initiate the best course of treatment.

Factors affecting the ovary size for pregnancy

The size and shape of your ovaries may change over time due to health conditions or ageing. Some of the common factors that can affect ovary size and shape include:

  • Advanced age – The ovaries are naturally small at the time of birth. They increase in size before puberty and attain maximum size during pregnancy. Over time, usually after the age of 35 years, the size of the ovary begins to decrease. By the time of menopause, the size reaches less than 2 cm.
  • Ovarian disorders – Ovarian disorders like Polycystic Ovarian Syndrome (PCOS) can cause the ovaries to enlarge due to abnormal growths and cyst formation.
  • Hormonal changes – Your ovaries are responsible for the production and release of reproductive hormones including estrogen and progesterone. Certain hormonal changes and imbalances can affect the ovary size usually making them enlarged.

How does ovary size affect pregnancy? 

An irregular ovary size, whether smaller or larger than normal, can affect conception.

Small ovaries can impact follicular development, thereby, affecting the process of ovulation. On the other hand, the large ovary size does not imply a higher number of ovarian follicles, it can occur due to hormonal disorders and cystic tumours. Due to this, the ovary size can become as large as 15 cm in size.
Therefore, it is important to attain a normal ovary size for pregnancy. According to the experts, the normal ovary size is considered 3 cm x 2.5 cm x 1.5 cm (length x width x thickness).

How to improve the health and size of ovaries? 

While you may not have control over your hormones or disorders, there are certain measures you can take to improve the ovaries’s health and size for pregnancy:

  • Maintain a balanced diet rich in antioxidants and essential nutrients.
  • Engage in regular exercise to support overall health and hormone balance.
  • Manage stress levels through relaxation techniques.
  • Avoid smoking and excessive alcohol consumption.
  • Consult a fertility expert for personalized guidance and treatment options.

Conclusion

Ovary size for pregnancy is as essential as other parameters to achieve conception. The overall health and quality of the eggs are determined by several factors including age, ovarian disorders, and hormonal changes. However, the normal size for pregnancy is 30mm (3 cm ) x 25mm (2.5 cm) x 15mm (1.5 cm) (length x width x thickness).

Remember, if you are trying to conceive, the key takeaway from this article is that you can improve your ovaries’ health by following the mentioned tips. Also, if you are looking for personalised guidance and treatments consult our fertility expert by calling us today.

FAQs:

  • Which ovary is best for pregnancy?

While both your ovaries can support and lead to healthy pregnancy, research has suggested that ovulation that occurs from the ovary on the right side is more suitable.

  • Can I get pregnant with my left ovary?

Yes, it is totally possible to achieve a healthy pregnancy by ovulation from the left ovary.

  • Which ovary produces more eggs?

It has been seen that the fertility potential of egg production from right ovary is more than the left ovary.

  • Does ovary size increase during pregnancy?

Yes, the size of your ovaries extend and increase during pregnancy as a result of hormone production.

Written by:
Dr. Shilpa Singhal

Dr. Shilpa Singhal

Consultant
Dr. Shilpa is an experienced and skilled IVF specialist providing a wide range of infertility treatment solutions to people across India. With over 11 years of experience under her belt, she has contributed immensely to the medical fraternity in the field of fertility. She has performed over 300 infertility treatments with a high success rate that has transformed the lives of her patients.
Dwarka, Delhi

Our Services

Fertility Treatments

Problems with fertility are both emotionally and medically challenging. At Birla Fertility & IVF, we focus on providing you with supportive, personalized care at every step of your journey towards becoming a parent.

Male Infertility

Male factor infertility accounts for almost 40%-50% of all infertility cases. Decreased sperm function can be the result of genetic, lifestyle, medical or environmental factors. Fortunately, most causes of male factor infertility can be easily diagnosed and treated.

We offer a comprehensive range of sperm retrieval procedures and treatments for couples with male factor infertility or sexual dysfunction.

Donor Services

We offer a comprehensive and supportive donor program to our patients who require donor sperm or donor eggs in their fertility treatments. We are partnered with reliable, government authorised banks to source quality assured donor samples which are carefully matched to you based on blood type and physical characteristics.

Fertility Preservation

Whether you have made an active decision to delay parenthood or are about to undergo medical treatments that may affect your reproductive health, we can help you explore options to preserve your fertility for the future.

Gynaecological Procedures

Some conditions that impact fertility in women such as blocked fallopian tubes, endometriosis, fibroids, and T-shaped uterus may be treatable with surgery. We offer a range of advanced laparoscopic and hysteroscopic procedures to diagnose and treat these issues.

Genetics & Diagnostics

Complete range of basic and advanced fertility investigations to diagnose causes of male and female infertility, making way for personalized treatment plans.

Our Blogs

Submit
By clicking Proceed, you agree to our Terms and Conditions and Privacy Policy

You can also reach us at

Do you have a question?

Footer arrow