If you’ve been wondering, can fibroids cause weight gain?, you’re not alone. Many women experience unexplained weight gain, bloating, or changes in their body shape, only to later discover that uterine fibroids are the culprit. But how exactly do fibroids contribute to weight gain? And more importantly, what can you do about it?
In this blog, we’ll dive deep into the connection between fibroids and weight gain, explore the latest research, and discuss what steps you can take to manage your health effectively.
What Are Fibroids?
Fibroids, or uterine leiomyomas, are non-cancerous growths that develop in or around the uterus. They are composed of muscle and fibrous tissue and can vary in size from as small as a pea to as large as a melon. While some fibroids remain small and symptom-free, others can grow significantly and lead to discomfort, including weight gain.

But Can Fibroids Cause Weight Gain?
Yes! Fibroids can cause weight gain in several ways:
- Large Fibroid Growth: As fibroids grow, they increase the overall weight in the abdominal region.
- Hormonal Imbalance: High estrogen levels can trigger both fibroid growth and fat accumulation.
- Bloating and Fluid Retention: Some women experience severe bloating, which makes them feel heavier.
- Increased Appetite: Hormonal fluctuations can also lead to increased cravings and eating patterns that result in weight gain.
The Science Behind Fibroids and Weight Gain
Several studies highlight the role of fibroids in weight gain. According to a study published in the American Journal of Obstetrics and Gynecology, women with larger fibroids often report higher body weight and an increased abdominal circumference. Another study in Fertility and Sterility found that estrogen dominance, a key factor in fibroid growth, is also linked to higher fat storage, particularly in the lower abdomen.
How Big Do Fibroids Have to Be to Cause Weight Gain?
Not all fibroids will lead to noticeable weight gain, but larger ones (typically over 5 cm) can contribute significantly. Some extreme cases report fibroids weighing 10-20 pounds or more! The larger the fibroid, the more it adds to your overall body weight.
Symptoms That Might Indicate Fibroids Are Causing Weight Gain
Wondering if fibroids are the reason behind your unexpected weight gain? Look out for these symptoms:
- A noticeably bloated abdomen that doesn’t go away
- Heavy menstrual bleeding
- Pelvic pain or pressure
- Frequent urination due to pressure on the bladder
- Constipation or digestive issues
If you’re experiencing these signs, it’s important to consult a doctor to determine if fibroids are behind your weight gain.

Can Fibroids Cause Weight Gain and Make It Hard to Lose Weight?
Many women struggle to lose weight even with proper diet and exercise due to fibroids. This is often because of:
- Hormonal Imbalances: Estrogen dominance makes fat loss more difficult.
- Chronic Inflammation: Fibroids can lead to systemic inflammation, making weight loss more challenging.
- Pain and Discomfort: Heavy periods and pelvic pain can reduce activity levels, leading to a sedentary lifestyle.
How to Manage Fibroid-Related Weight Gain?
If you’re concerned that fibroids are affecting your weight, here are some effective strategies:
1. Monitor Your Diet
Reduce estrogen-heavy foods like soy, dairy, and processed meats. Eat more fiber-rich foods like vegetables, fruits, and whole grains to help balance hormones. Drink plenty of water to reduce bloating and aid digestion.
2. Exercise Regularly
Engage in moderate-intensity workouts like walking, yoga, or swimming to manage weight. Strength training can help maintain muscle mass, which can offset fibroid-related weight gain.
3. Consider Medical Treatments
If fibroids are significantly affecting your weight and overall health, medical interventions might be necessary. Options include:
- Medications: Hormonal therapies like birth control pills or GnRH agonists can shrink fibroids.
- Non-invasive procedures: Uterine Fibroid Embolization (UFE) can shrink fibroids without surgery.
- Surgical options: Myomectomy or hysterectomy may be necessary in severe cases.
4. Lifestyle Changes to Balance Hormones
Manage stress levels to lower cortisol, which contributes to weight gain. Get enough sleep to regulate metabolism and hormone balance. Consider natural supplements like Vitamin D, magnesium, and herbal remedies that support hormonal health.
Can Fibroids Cause Weight Gain That Goes Away After Treatment?
Yes! Many women experience significant weight loss once their fibroids are treated. The extent of weight loss depends on the size of the fibroids removed and whether hormone levels return to normal post-treatment. Some women lose several pounds within weeks of undergoing fibroid treatment.
Should You Be Concerned About Fibroids and Weight Gain?
If you’ve been asking yourself, can fibroids cause weight gain?, the answer is a definite yes! However, the good news is that fibroid-related weight gain is manageable with the right approach. Whether through dietary changes, exercise, medical treatment, or a combination of all three, you can take control of your health.
If you suspect fibroids are affecting your weight, don’t ignore the signs. Consult with a doctor, explore treatment options, and take proactive steps toward a healthier, more balanced body.
Do you have experience with fibroids and weight gain? Share your story in the comments below!