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A female asked:

3 months late on period. urine test neg for pregnancy. ultrasound on pelvic neg.clear mucus coming out. having extreme lower back pain on left side ?

3 doctor answers4 doctors weighed in
Dr. James Rotchford
Addiction Medicine 41 years experience
No clear explanation: It sounds like the initial workup was appropriate. There are many reasons why periods can stop. For example, distance running can do it in some women. I just can't readily connect the mucous coming out with the back pain. Perhaps you have an undiagnosed pelvic infection? I would want to know the findings of a pelvic exam and blood work.
Dr. Jane Van Dis
Obstetrics and Gynecology 18 years experience
A few ideas: It sounds like there could be other reasons for your lack of menses. #1 reason would be a hormonal imbalance. Other reasons could include thyroid or pituitary problems. Often women miss cycles due to weight (being too thin or too heavy, too little or too much estrogen). Clear mucous is normal. Back pain could be musculoskeletal, your kidneys, or endometriosis. See a MD if still no period.
Dr. Jeffrey Levine
Family Medicine 31 years experience
Need other workup: Assuming you are not of menopausal age, your clinician should conduct other lab tests to assess for cause of your amenorrhea (lack of a period for consecutive months). If lab tests are normal, they should give you a hormone (provera) to try and bring on your period.

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Last updated Nov 7, 2014

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