常见问题:肌瘤
- 什么是肌瘤?
- What are the different types of fibroids?
- 什么导致了肌瘤?
- Who is affected by fibroids?
- What happens to fibroids over time?
- When is fibroid treatment necessary?
- 接下来会发生什么?
什么是肌瘤?
肌瘤 are round muscle growths that develop within a woman's uterus, 也被称为子宫, which is a pear-shaped organ located between the bladder and rectum.
肌瘤 are almost always benign, meaning that they are non-cancerous. 肌瘤 vary in size, ranging from as small as a pea to as large as a melon. They are also called leiomyomas or myomas.
What are the different types of fibroids?
肌瘤 can grow in different parts of the uterus the pear-shaped organ located between the bladder and rectum. The uterine walls are composed of muscle, allowing it to expand enormously during pregnancy. Within the uterus is a central cavity in which the fetus develops.
The endometrium is the inner lining of the uterine cavity. A menstrual period results from the shedding of the endometrium. 肌瘤 located beneath this lining can cause very heavy bleeding.
卵巢, which produce the female hormones 雌激素和黄体酮, are tethered to the upper part of the uterus, close to the ends of the fallopian tubes. The fallopian tubes, where fertilization of the eggs occurs, are located at each side of the uterus.
The cervix is the lowest part of the uterus. It has a narrow canal through which menstrual blood passes. The main function of the cervix is to hold the uterus closed during pregnancy.
Pedunculated fibroids are attached to the uterine wall by stalks. Subserosal fibroids extend outward from the uterine wall. Submucosal fibroids expand from the uterine wall into the uterine cavity. Intramural fibroids develop within the uterine wall. These different types of fibroids cause different symptoms. For example, submucosal fibroids typically cause heavy periods. 与此形成鲜明对比的是, subserosal fibroids are more likely to push against the bladder, resulting 3in frequent urination.
什么导致了肌瘤?
十大赌博平台排行榜 and medical researchers do not know what causes fibroids to develop. 然而, evidence suggests that the female hormones, 雌激素和黄体酮, 能使肌瘤生长吗. During pregnancy, when the hormone levels are high, fibroids tend to increase in size. After menopause, when the hormone levels are low, fibroids stop growing and may become smaller.
Who is affected by fibroids?
肌瘤很常见. It is estimated that 20-50 percent of all women have these benign uterine growths. 肌瘤 are most likely to affect women in their 30s and 40s. For reasons we don't yet understand, fibroids occur more frequently in African-American women. Many women with fibroids have other family members with fibroids too.
What happens to fibroids over time?
Some fibroids grow steadily during the reproductive years, while others stay the same size for many years. All fibroids should stop growing after menopause. Women with fibroids that enlarge after menopause should seek evaluation from their doctor.
When is fibroid treatment necessary?
Most fibroids, even large ones, do not produce symptoms. Unless a woman is experiencing symptoms, she usually doesn't need to undergo a fibroid treatment. 然而, when fibroids cause symptoms, a woman should seek medical attention.
接下来会发生什么?
No two women with fibroids are alike. The type of treatment will depend on the severity of the symptoms and the fibroid size, 号码和位置. A woman's preference and desire for future childbearing is also considered. There are many effective ways to treat fibroids. 然而, not all treatments are recommended for all women. For example, some fibroid treatments may not be proven safe for women desiring future childbearing.
加州大学旧金山分校健康 medical specialists have reviewed this information. It is for educational purposes only and is not intended to replace the advice of your doctor or other health care provider. We encourage you to discuss any questions or concerns you may have with your provider.