What is Endometrial Polyps?

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Endometrial polyps

Endometrial polyps, also called uterine polyps, are growths in the interior of the uterus or womb, formed of an overgrowth of the cells (endometrium) that line this cavity. They may occur alone or in clusters and are typically less than a centimeter in diameter, but in rare cases can grow much more extensive – for example, to the size of a golf ball or an orange.^[1][2]

Symptoms in adults, both pre and postmenopausal, commonly include unusual bleeding. Polyps are more common in people who have not yet experienced menopause than in those who have. This may be because endometrial polyps seem to be reactive to estrogen levels. However, much is unknown about the formation of these polyps. They rarely occur in adolescents. Endometrial polyps can affect a woman’s fertility and, in rare cases, be linked to cancer.^[1][2]

Uterine polyp symptoms

Common symptoms of endometrial polyps include:^[1][2]

• Irregular menstrual bleeding. Menstrual bleeding that is shorter or longer in length than usual, or that occurs at unexpected times
• Spotting or bleeding between menstrual periods
• Unusually heavy bleeding during periods
• Unusual appearance of brown blood after a menstrual period
• Spotting or bleeding after menopause
• Spotting or bleeding after sexual intercourse
• Severe menstrual cramping, though this is uncommon
• Infertility

Many of these symptoms do not arise from the polyp formation itself but because of rubbing and irritation of the surrounding tissue. Most endometrial polyps are small, and many people who experience them will never develop symptoms. Pain is not a typical symptom of uterine polyps.^[3]

People experiencing possible symptoms of endometrial polyps should seek medical attention. In addition, a List of Doctors can Help you find a good doctor.

Endometrial polyp causes

Endometrial polyps are caused by the overgrowth of endometrial tissue, which is the lining of the uterus that swells and then shrinks during the menstrual cycle. Endometrial polyps are estrogen-sensitive, with hormones in the bloodstream playing a role in their occurrence.^[2][4]

Risk factors

Women over 40 who have not experienced menopause, and those who have had children, are considered to be at greater risk of developing endometrial polyps. Other risk factors include:^[1][2][5][6]

• Going through perimenopause
• Hormone replacement therapy after menopause, particularly where the dose of estrogen is high
• Obesity
• Treatment with the medication tamoxifen for breast cancer, after menopause

Endometrial polyps may recur. People who have had polyps in the past are somewhat more likely to develop them in the future compared to those who have never had them.^[1][3]

People worried about developing endometrial polyps can use a List of Doctors to find the nearest doctor.

Diagnosis of endometrial polyps

Transvaginal ultrasound (TVUS) is the first-line method for evaluating women with abnormal vaginal bleeding. During a TVUS, a thin, wand-like device is placed inside the vagina and uterus, where it emits ultrasonic waves. The doctor may be able to identify a uterine polyp by examining this ultrasound.^[2]

If the ultrasound finding is uncertain, there are two other options. One is where the physician carries out a more specialized ultrasound, called a sonohysterography or a saline infusion sonogram (SIS). In this procedure, the doctor injects a small amount of saline into the uterus to expand the uterine cavity and provide a clearer picture.^[2]

The second option, should a TVUS be uncertain, is a hysteroscopy. This allows a more direct view of the inside of the uterus, using a hysteroscope: a lighted camera mounted on a flexible rod. The hysteroscope may be equipped with an additional tool to gather a biopsy sample. A suction catheter could also be used to gather an endometrial biopsy. The tissue sample will then be analyzed to see if it indicates uterine cancer.^[2]

Treatments for endometrial polyps

Small, asymptomatic polyps in people before menopause often require no treatment, but will instead be monitored for changes or an increase in symptoms.^[2]

A short-term option to address the symptoms of endometrial polyps is the use of hormonal treatments, such as gonadotropin-releasing hormone agonists and progestins. However, since symptoms usually recur once treatment is stopped, this is not the preferred long-term treatment option.^[2]

Uterine polyp removal, called a polypectomy, which is carried out using a hysteroscopy, is the standard procedure. The doctor uses a camera attached to a long, thin tube to examine the interior of the uterus, locate the polyp and then remove it with an integrated wire loop or blade. It is typically screened for cancer.^[3]

The removal of small endometrial polyps using hysteroscopy can sometimes be done as an outpatient procedure at a doctor’s office, but removing large polyps may require a hospital stay. Many people are able to return to normal activities within the next few days. Side-effects of uterine polyp removal may include light spotting.^[3]

Preventing endometrial polyps recurrence

In most cases, endometrial polyps do not recur after they have been removed by polypectomy.^[1] If they do recur, a repeat polypectomy procedure may be recommended.

If a person is concerned, an intrauterine device (IUD) can be inserted into the uterus to help prevent a recurrence of uterine polyps. This contraceptive may be a good choice for those who hope to maintain their fertility.^[1]

Endomyometrial resection (EMR) – the surgical removal of around 5 mm of the uterine lining and some underlying muscle tissue – is another option, though this is a complex procedure and may not be appropriate for everyone. It is typically only recommended for people who do not wish to have children.^[7]

Endometrial/uterine polyps and pregnancy

It is thought that endometrial polyps may have a negative impact on a person’s fertility, but further research is needed in this field. Many doctors recommend removing polyps if the person is undergoing evaluation for infertility or has a history of miscarriage.^[3] Nevertheless, studies do not suggest that endometrial polyps are associated with miscarriage.^[8][4]

If younger people who may wish to have children undergo polypectomy (surgery to remove the polyps), it must be ensured that the deep lining of the uterus is not damaged.^[1]

Uterine polyps FAQs

Q: Are uterine polyps related to cancer?
A: Roughly 95 percent of the time, endometrial polyps are benign, meaning they are noncancerous. In about five percent of cases, they are linked to cancer. If uterine polyps can develop into cancer, they are called precancerous. Among people with endometrial polyps, those presenting with bleeding and those older than 50 are more likely to have cancerous endometrial polyps.^[3][9]

Q: How are endometrial polyps different from uterine fibroids (leiomyoma)?
A: Endometrial polyps are formed from the lining of the uterus and therefore only occur within the uterine cavity. Fibroids come from the uterine musculature and may arise on any part of the uterus interior, exterior, or uterine wall. Uterine polyps have roughly a 5 percent chance of being related to cancer (malignant), while fibroids have less than a 1 percent likelihood of malignancy.^[4][10]

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1. The Center for Menstrual Disorders & Reproductive Choice. “Menstrual Disorders, Fibroids & Polyps.” Accessed July 18, 2017. ↩ ↩ ↩ ↩ ↩ ↩ ↩ ↩

2. Mayo Clinic. “Uterine polyps.” Accessed July 18, 2017. ↩ ↩ ↩ ↩ ↩ ↩ ↩ ↩ ↩ ↩

3. OBGYN.net. “Endometrial Polyps.” June 22, 2011. Accessed July 18, 2017. ↩ ↩ ↩ ↩ ↩ ↩

4. UpToDate. “Endometrial polyps.” August 29, 2017. Accessed April 6, 2018. ↩ ↩ ↩

5. Cleveland Clinic. “Uterine Polyps.” July 29, 2014. Accessed May 31, 2018. ↩

6. The Obstetrician & Gynecologist. “The management of endometrial polyps in the 21st century.” 2012. Accessed May 31, 2018. ↩

7. The Center for Menstrual Disorders & Reproductive Choice. “Endomyometrial Resection (EMR).” Accessed July 18, 2017. ↩

8. Advanced Fertility Center of Chicago. “Uterine Polyps Can Cause Infertility or Miscarriage.” Accessed July 18, 2017. ↩

9. Columbia University Medical Center. “Uterine Polyps.” Accessed May 31, 2018. ↩

10. UpToDate. “Differentiating uterine leiomyomas (fibroids) from uterine sarcomas.” December 28, 2017. Accessed May 31, 2018. ↩

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**What are Endometrial ⁣Polyps?**



**Q: What are Endometrial Polyps?**



**A:** Endometrial polyps are‌ noncancerous growths ⁤that project from the lining of the uterus (endometrium). They are most commonly found in women in⁣ their 40s and 50s. The exact cause⁢ of endometrial polyps is unknown, but they are thought to be ⁣related ⁢to⁤ an overgrowth of the endometrium.



**Q: What are the Symptoms of⁣ Endometrial Polyps?**



**A:** Endometrial polyps can cause a variety of‍ symptoms,‌ including:



* Abnormal⁣ vaginal bleeding

* Heavy or prolonged ‍menstrual periods

*⁢ Painful menstrual cramps

* Bleeding between periods

* Infertility



**Q: How are Endometrial Polyps Diagnosed?**



**A:** Endometrial polyps are‌ diagnosed through a⁣ variety of tests, including:



* Transvaginal ultrasound

* Hysteroscopy (a procedure in which a thin ​tube with a camera is inserted into the uterus)

* Endometrial ‍biopsy (a procedure in which a sample of tissue from the endometrium is removed for examination)



**Q: How are Endometrial Polyps Treated?**



**A:** Treatment for endometrial polyps depends on the size and number⁤ of polyps, as well as the ⁤symptoms they are ⁢causing. Treatment options include:



* Observation ‍(for small polyps that are not causing ​any symptoms)

* Medications (to reduce ‌the size of polyps)

* Surgery (to ⁢remove polyps)



**Q: What are the Risks Associated with⁤ Endometrial Polyps?**



**A:** Endometrial polyps are ⁣generally benign (noncancerous). However, in some cases,⁤ they can become cancerous. The risk of cancer⁢ is ⁢higher‍ in women ​who have:



* Polyps that are large or numerous

* ‍Polyps that have⁢ a complex or atypical appearance

*⁣ A history of endometrial cancer



**Q: How can Endometrial Polyps be Prevented?**



**A:** ‍There is no⁣ sure way to prevent endometrial polyps. However, there are some things that women can do to reduce their risk,⁤ including:



* Maintaining a⁢ healthy weight

* Exercising regularly

* Eating⁣ a healthy diet

* Limiting alcohol intake

* Quitting smoking