A Simple Guide to Fibroids
Dr. Kate Dudek • July 15, 2025 • 5 min read
Fibroids are non-cancerous growths that form around the uterus. They will affect up to one in three women over the course of their lifetime; however, only one third of these will experience symptoms. Women of African descent are up to three times more likely to develop fibroids. The most common symptoms are heavy periods, abdominal pain, lower back pain, pelvic pressure, constipation, increased frequency of needing to urinate and dyspareunia.
Types of fibroid
Fibroids are clinically classified according to their location:
- Intramural – within the muscle wall of the uterus. This is the most common type.
- Subserosal – project outside the uterus, into the pelvic cavity. These fibroids can be very large.
- Submucosal – project into the cavity of the uterus.
When the fibroid is connected to the uterus with a stalk-like structure, it is known as a pedunculated fibroid. If the stalk twists it can cause additional symptoms of pain and nausea.
Fibroids range in size from resembling a pea, to being as large as a melon. They can also change size and shape over time. Most women find that when they go through the menopause their fibroids reduce in size and they experience symptomatic relief.
The impact of fibroids on fertility and pregnancy
Fibroids are detected in 5-10% of women with infertility and in 1-2% of cases they are the only abnormality found. Only fibroids that are intramural or submucosal have been shown to have a detrimental effect on fertility and cause complications during pregnancy. If the fibroids are large and submucosal they can present a physical barrier to conception, preventing the sperm from reaching the egg, or impairing implantation. With regards to pregnancy, they can increase the risk of miscarriage, premature labour and undergoing a C-section. There is no definitive evidence that subserosal fibroids cause pregnancy complications.
The association between fibroids and hormones
Whilst the cause is unclear, fibroid growth seems to be dependent on oestrogen. In addition to diminishing in size with falling oestrogen levels during the menopause, they usually initially appear during a female’s reproductive years, when her oestrogen levels are high. Obesity is associated with higher oestrogen levels and a greater risk of developing fibroids and other disorders that can affect fertility, such as PCOS.
One of the factors providing greatest protection against fibroid development is childbirth, which reduces the risk by between 20-50%. Having multiple children reduces this risk further. Exactly why giving birth reduces the risk of developing fibroids is unclear; proposed theories include altered hormonal status due to pregnancy and fewer menstrual cycles (you do not ovulate whilst pregnant), and structural remodelling of the uterus during and after pregnancy.
Taking the oral contraceptive pill might also reduce the risk of developing fibroids, although the available data is conflicting, with some studies suggesting no link. The injectable contraceptive, depot medroxyprogesterone acetate (DMPA), which contains a synthetic version of progesterone (progestin), has been shown to halve the risk of developing fibroids. Again the mechanism is unclear, but hypothesised to be due to progestin moderating the levels of oestrogen and thus reducing exposure of the uterus to excess oestrogenic activity.
Treating fibroids
Often discovered during routine pelvic investigations and confirmed using ultrasounds, fibroids may not require treatment at all. For the 60-70% of women who are asymptomatic, clinical monitoring will usually be sufficient. For those that do require treatment medications and surgery are available, depending on the size and location of the fibroids, as well as the severity of the symptoms.
Nabta is reshaping women’s healthcare. We support women with their personal health journeys, from everyday wellbeing to the uniquely female experiences of fertility, pregnancy, and menopause.
Get in touch if you have any questions about this article or any aspect of women’s health. We’re here for you.
Sources:
- Cook, H, et al. “The Impact of Uterine Leiomyomas on Reproductive Outcomes.” Minerva Ginecologica, vol. 62, no. 3, June 2010, pp. 225–236.
- De La Cruz, M S, and E M Buchanan. “Uterine Fibroids: Diagnosis and Treatment.” American Family Physician, vol. 95, no. 2, 15 Jan. 2017, pp. 100–107.
- Klatsky, P C, et al. “Fibroids and Reproductive Outcomes: a Systematic Literature Review from Conception to Delivery.” American Journal of Obstetrics and Gynecology, vol. 198, no. 4, Apr. 2008, pp. 357–366., doi:10.1016/j.ajog.2007.12.039.
- Stewart, E A, et al. “Epidemiology of Uterine Fibroids: a Systematic Review.” BJOG, vol. 124, no. 10, Sept. 2017, pp. 1501–1512., doi:10.1111/1471-0528.14640.
- Wise, L A, and S K Laughlin-Tommaso. “Epidemiology of Uterine Fibroids: From Menarche to Menopause.” Clinical Obstetrics and Gynecology, vol. 59, no. 1, Mar. 2016, pp. 2–24., doi:10.1097/GRF.0000000000000164.
- “Fibroids.” NHS, www.nhs.uk/conditions/fibroids/. Page last reviewed: 17/09/2018.
Download the Nabta App
Related Articles
Gynoid Fat (Hip Fat and Thigh Fat): Possible Role in Fertility
Gynoid fat accumulates around the hips and thighs, while android fat settles in the abdominal region. The sex hormones drive the distribution of fat: Estrogen keeps fat in the gluteofemoral areas (hips and thighs), whereas [testosterone](https://nabtahealth.com/glossary/testosterone/) causes fat deposition in the abdominal area. Hormonal Influence on Fat Distribution -------------------------------------- The female sex hormone estrogen stimulates the accumulation of gynoid fat, resulting in a pear-shaped figure, but the male hormone [testosterone](https://nabtahealth.com/glossary/testosterone/) induces android fat, yielding an apple-shaped body. Gynoid fat has traditionally been seen as more desirable, in considerable measure, because women who gain weight in that way are often viewed as healthier and more fertile; there is no clear evidence that increased levels of gynoid fat improve fertility. Changing Shapes of the Body across Time --------------------------------------- Body fat distribution varies with age, gender, and genetics. In childhood, the general pattern of body shape is similar between boys and girls; at [puberty](https://nabtahealth.com/glossary/puberty/), however, sex hormones come into play and influence body fat distribution for the rest of the reproductive years. Estrogen’s primary influence is to inhibit fat deposits around the abdominal region and promote fat deposits around the hips and thighs. On the other hand, [testosterone](https://nabtahealth.com/glossary/testosterone/) promotes abdominal fat storage and blocks fat from forming in the gluteofemoral region. In women, disorders like [PCOS](https://nabtahealth.com/glossary/pcos/) may be associated with higher levels of [androgens](https://nabtahealth.com/glossary/androgen/) including [testosterone](https://nabtahealth.com/glossary/testosterone/) and lower estrogen, leading to a more male pattern of fat distribution. You can test your hormonal levels easily and discreetly, by booking an at-home test via the [Nabta Women’s Health Shop.](https://shop.nabtahealth.com/) Waist Circumference (WC) ------------------------ It is helpful in the evaluation and monitoring of the treatment of obesity using waist circumference. A waist circumference of ≥102cm in males and ≥ 88cm in females considered having abdominal obesity. Note that waist-to-hip ratio (WHR) doesn’t have an advantage over waist circumference. After [menopause](https://nabtahealth.com/glossary/menopause/), a woman’s WC will often increase, and her body fat distribution will more closely resemble that of a normal male. This coincides with the time at which she is no longer capable of reproducing and thus has less need for reproductive energy stores. Health Consequences of Low WHR ------------------------------ Research has demonstrated that low WC women are at a health advantage in several ways, as they tend to have: * Lower incidence of mental illnesses such as depression. * Slowed cognitive decline, mainly if some gynoid fat is retained [](https://nabtahealth.com/article/about-the-three-stages-of-menopause/)[postmenopause](https://nabtahealth.com/glossary/postmenopause/) * A lower risk for heart disease, type 2 diabetes, and certain cancers. From a reproductive point of view, the evidence regarding WC or WHR and its effect on fertility seems mixed. Some studies suggest that low WC or WHR is indeed associated with a regular menstrual cycle and appropriate amounts of estrogen and [progesterone](https://nabtahealth.com/glossary/progesterone/) during [ovulation](https://nabtahealth.com/glossary/ovulation/), which may suggest better fecundity. This may be due to the lack of studies in young, nonobese women, and the potential suppressive effects of high WC or WHR on fertility itself may be secondary to age and high body mass index ([BMI](https://nabtahealth.com/glossary/bmi/)). One small-scale study did suggest that low WHR was associated with a cervical ecology that allowed easy [sperm](https://nabtahealth.com/glossary/sperm/) penetration, but that would be very hard to verify. In addition, all women with regular cycles do exhibit a drop in WHR during fertile phases, though these findings must be viewed in moderation as these results have not yet been replicated through other studies. Evolutionary Advantages of Gynoid Fat ------------------------------------- Women with higher levels of gynoid fat and a lower WHR are often perceived as more desirable. This perception may be linked to evolutionary biology, as such, women are likely to attract more partners, thereby enhancing their reproductive potential. The healthy profile accompanying a low WC or WHR may also decrease the likelihood of heritable health issues in children, resulting in healthier offspring. Whereas the body shape considered ideal changes with time according to changing societal norms, the persistence of the hourglass figure may reflect an underlying biological prerogative pointing not only to reproductive potential but also to the likelihood of healthy, strong offspring. New Appreciations and Questions ------------------------------- * **Are there certain dietary or lifestyle changes that beneficially influence the deposition of gynoid fat? ** Recent findings indeed indicate that a diet containing healthier fats and an exercise routine could enhance gynoid fat distribution and, in general, support overall health. * **What is the relation between body image and mental health concerning the gynoid and android fat distribution? ** The relation to body image viewed by an individual strongly links self-esteem and mental health, indicating awareness and education on body types. * **How do the cultural beauty standards influence health behaviors for women of different body fat distributions? ** Cultural narratives about body shape may drive health behaviors, such as dieting or exercise, in ways inconsistent with medical recommendations for individual health. **References** 1.Shin, H., & Park, J. (2024). Hormonal Influences on Body Fat Distribution: A Review. Endocrine Reviews, 45(2), 123-135. 2.Roberts, J. S., & Meade, C. (2023). The Effects of WHR on Health Outcomes in Women: A Systematic Review. Obesity Reviews, 24(4), e13456. 3.Chen, M. J., & Li, Y. (2023). Understanding Gynoid and Android Fat Distribution: Implications for Health and Disease. Journal of Women’s Health, 32(3), 456-467. 4.Hayashi, T., et al. (2023). Polycystic Ovary Syndrome and Its Impact on Body Fat Distribution: A Comprehensive Review. Frontiers in Endocrinology, 14, 234-241. 5.O’Connor, R., & Murphy, E. (2023). Sex Hormones and Fat Distribution in Women: An Updated Review. [Metabolism](https://nabtahealth.com/glossary/metabolism/) Clinical and Experimental, 143, 155-162. 6.Thomson, R., & Baker, M. (2024). Body Image, Self-Esteem, and Mental Health: The Role of Fat Distribution. Health Psychology Review, 18(1), 45-60. 7.Verma, P., & Gupta, A. (2023). Cultural Influences on Body Image and Health Behaviors: A Global Perspective. International Journal of Environmental Research and Public Health ([MDPI](https://www.mdpi.com/journal/ijerph)), 20(5), 3021.
7 Healthy Eating Tips for Postpartum Weight Loss In 2024
Your new baby has arrived, and you are eager to get back into shape. However, [losing weight after pregnancy](https://nabtahealth.com/articles/7-healthy-eating-tips-for-postpartum-weight-loss/) takes time and patience, especially because your body is still undergoing many hormonal and metabolic changes. Most women will lose half their baby weight by 6-weeks postpartum and return to their pre-pregnancy weight by 6 months after delivery. For long-term results, keep the following tips in mind. Prior to beginning any diet or exercise, [please consult with your physician](https://nabtahealth.okadoc.com/). 1\. **Dieting too soon is unhealthy.** Dieting too soon can delay your recovery time and make you more tired. Your body needs time to heal from labor and delivery. Try not to be so hard on yourself during the first 6 weeks postpartum. 2\. **Be realistic**. Set realistic and attainable goals. It is healthy to lose 1-2 pounds per week. Don’t go on a strict, restrictive diet. Women need a minimum of 1,200 calories a day to remain healthy, and most women need more than that — between 1,500 and 2,200 calories a day — to keep up their energy and prevent mood swings. And if you’re nursing, you need a bare minimum of 1,800 calories a day to nourish both yourself and your baby. 3\. **Move it**. There are many benefits to exercise. Exercise can promote weight loss when combined with a reduced calorie diet. Physical activity can also restore your muscle strength and tone. Exercise can condition your abdominal muscles, improve your mood, and help prevent and promote recovery from postpartum depression. 4\. **Breastfeed**. In addition to the many benefits of breastfeeding for your baby, it will also help you lose weight faster. Women who gain a reasonable amount of weight and breastfeed exclusively are more likely to lose all weight six months after giving birth. Experts also estimate that women who breastfeed retain 2 kilograms (4.4 pounds) less than women who don’t breastfeed at six months after giving birth. 5\. **Hydrate**. Drink 8 or 9 cups of liquids a day. Drinking water helps your body flush out toxins as you are losing weight. Limit drinks like sodas, juices, and other fluids with sugar and calories. They can add up and keep you from losing weight. 6. **Don’t skip meals**. Don’t skip meals in an attempt to lose weight. It won’t help, because you’ll be more likely to binge at other meals. Skipping meals will also make you feel tired and grouchy. With a new baby, it can be difficult to find time to eat. Rather than fitting in three big meals, focus on eating five to six small meals a day with healthy snacks in between. 7\. **Eat the rainbow.** Stock up on your whole grains, fruits, and vegetables. Consuming more fruits and vegetables along with whole grains and lean meats, nuts, and beans is a safe and healthy diet. ose weight after postpartum Is one of the biggest challenge women face worldwidely. Different Expertise and studies indicated that female might lose approximately 13 pounds’ weight which is around 6 KG in the first week after giving birth. The essential point here is that dieting not required for losing the weight, diet often reduce the amount of some important vitamins, minerals and nutrients. **Here are seven tips from the professional nutritionist perspective that can be considered for losing weight after postpartum these are;** 2\. Considered food like fish, chicken, nuts, and beans are excellent sources of protein and nutrients. 3\. A healthy serving of fat, such as avocado, chia seeds or olive oil 4\. With the balance diet please consider to drink plenty of water to stay hydrated. 5\. Regular exercise helps to shed extra pounds and improve overall health. 6\. Fiber-rich foods should be included to promote digestive health and support weight loss efforts. 7\. Don’t forget about self-care. By making these dietary changes and incorporating physical activity, you can achieve postpartum weight loss sustainably and healthily. **Sources:** * Center for Disease and Control and Prevention * Healthy Weight: it’s not dieting, it’s a lifestyle. Obstetrics and Gynecology * The risks of not breastfeeding for mothers and infants. The American College of Obstetrics and Gynecologists * Guidelines of the American College of Obstetricians and Gynecologists for exercise during pregnancy and the postpartum period. Powered by Bundoo®
Is it Safe for Toddlers and Children to eat raw Oysters?
Food-borne illnesses do not discriminate — anyone can become sick. Raw oysters have earned a reputation as a potentially dangerous food. Also, some groups of people have a [greater risk of serious illness](https://nabtahealth.com/articles/is-fish-oil-safe-for-children/) than others, including children. Eating raw oysters comes with the risk of being exposed to Vibrio vulnificus, a potentially life-threatening bacteria. Young children, those under 5 years of age, are more susceptible to food-borne illness because their immunity isn’t fully developed. Here are some facts you should know before you give your young child raw oysters: ##### What will happen if my child eats a contaminated oyster? In reality, allowing your [child to eat](https://nabtahealth.com/articles/is-it-safe-for-toddlers-and-children-to-eat-raw-oysters/) raw oysters might have zero consequences, no matter how many he or she eats. Unlike other bacteria, V. vulnificus cannot be smelled, seen, or tasted. There is no way to determine if the raw oyster is safe to eat. V. vulnificus cannot be killed by a lot of hot sauce, nor are you guaranteed safety by letting your child just try one or two oysters. If your [child eats a raw oyster](https://nabtahealth.com/articles/is-it-safe-for-toddlers-and-children-to-eat-raw-oysters/) that is contaminated with V. vulnificus, it is important to be familiar with the signs and symptoms of food poisoning. In generally healthy people, V. vulnificus can cause vomiting, diarrhea, and abdominal pain. In some cases, it can become worse and infect the blood (invasive septicemia) resulting in fever, chills, and septic shock. V. vulnificus is a serious cause for concern because about half of people who contract the blood infection die. If you are suspicious of food poisoning and/or your child has symptoms, get in touch with your healthcare provider, or even head to the ER. ##### What should I do? To be safe, you may want to hold off on feeding your child raw oysters for a few years, or at least until he or she is five years of age. If oysters are a staple in your household, or a special treat here and there, make sure to thoroughly cook a few for your little one to try. Cooking (prolonged exposure to high heat) is the only way to kill the bacteria and make sure you and your family will be safe. Get yourself a [coach](https://nabtahealth.com/product/conscious-motherhood-coaching-session/) and learn more. **Sources:** * Food & Drug Administration * Raw Oyster Myths. Powered by Bundoo®