Uterine fibroids are common, non-cancerous growths developing within the uterus. Affecting many women during their reproductive years, they can lead to various symptoms. Understanding their nature is important, especially regarding their influence on body weight.
What Are Uterine Fibroids?
Uterine fibroids, also known as leiomyomas or myomas, are benign growths of muscle cells and fibrous connective tissue. Originating from the uterus’s smooth muscle layer, they are the most common non-cancerous tumors in females.
Fibroids vary significantly in size, from a seed to larger than a grapefruit, potentially filling the pelvis. They grow in different locations: intramural (within the muscular wall), submucosal (under the inner lining), and subserosal (on the outer surface). Some, called pedunculated fibroids, attach by a stalk.
The Direct Answer: Fibroids and Weight Loss
Uterine fibroids do not typically cause weight loss. As masses of tissue, they do not increase metabolism or reduce nutrient absorption. Therefore, significant, unintentional weight loss is not a symptom directly attributable to fibroids.
If an individual with fibroids experiences unexplained weight loss, it is likely due to other underlying health issues. While fibroids add to overall body mass, their presence does not lead to a systemic reduction in body weight.
How Fibroids Typically Affect Body Weight
While fibroids do not cause weight loss, they can influence body weight, often leading to a perception of weight gain. Large fibroids can add physical mass, with some exceeding several pounds, directly increasing overall body weight.
Fibroids frequently cause abdominal distension, bloating, or increased abdominal girth, sometimes making a person appear pregnant. This occurs as fibroids take up space or press on surrounding organs like the intestines, leading to digestive issues and gas. Heavy menstrual bleeding, a common symptom, can result in anemia. Anemia causes fatigue, which may reduce physical activity, indirectly affecting weight management.
When to Consult a Doctor About Unexplained Weight Changes
Unexplained weight loss can be a symptom of various medical conditions and should always be evaluated by a healthcare professional. A general guideline is to consult a doctor if you lose over 5% of your body weight in 6 to 12 months without intentionally trying. For example, a 160-pound person would be concerned about an unintentional loss of 8 pounds.
A healthcare provider will typically discuss symptoms, medical history, and perform a physical examination. They may also order laboratory tests, such as blood and urine tests, to assess overall health and rule out underlying conditions. These steps help determine the cause of any significant, unintentional weight changes, whether fibroids are present or not.