try 75 percent of all women.. though most don't ever show symptoms
symptoms of fibroids:
* Abnormal menstrual bleeding. Up to 30% of women with fibroids have menstrual period changes, such as:1, 4
o Heavier, prolonged periods (menorrhagia) that may cause anemia.
o Painful periods (dysmenorrhea).
o Spotting before or after periods.
o Bleeding between periods.
* Pelvic pain and pressure, such as:
o Pain in the abdomen, pelvis, or low back.
o Pain during sexual intercourse (dyspareunia).
o Bloating and feelings of abdominal pressure.
* Urinary problems, such as:
o Frequent urination.
o Urinary tract infection.
o Leakage of urine (urinary incontinence).
o Kidney infection (pyelonephritis).
o Bladder infection (cystitis).
* Other symptoms, such as:
o Constipation.
o Infertility. Experts disagree about whether or not uterine fibroids cause infertility.
o Problems with pregnancy, such as placental abruption and premature labor.
o Miscarriage.
When you should call a doctor:
http://my.webmd.com/hw/uterine_fibroids/hw183527.asp
* You have new
* severe menstrual bleeding. Your periods have changed from relatively pain-free to painful over the past 3 to 6 months.
* You have frequent painful urination, blood in the urine, or an inability to control the flow of urine.
* The length of your menstrual cycles has changed over 3 to 6 menstrual cycles.
* You have new persistent pain or heaviness in the lower abdomen or pelvis.
Watchful Waiting
Regular health professional examinations are all that is needed for most uterine fibroids unless severe symptoms develop or become bothersome.
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That was from webmd - however, since you are over age 18 -- you should be going to a gynocologist yearly anyhow, especially if you are sexually active. Doing a little research and diagnosing yourself doesn't mean you have fibroids (and you'd generally have more than just one) If theres something amiss, you should go to a doctor for a diagnosis.
What symptoms are you experiencing that leads you to beleive you have them?