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Irregular period and nodule on thyroid

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i had my baby December 2009, i got my period in Jan and in Feb skipped March and got it again in April, but since April i haven't had it. its been 6 months.. im worried its something bad.. another dr also said he felt a nodule on my thyroid.. should i be worried that its cancer?

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replied October 7th, 2010
Postpartum and Postnatal Answer A16543
Hi, and thanks for your medical question on eHealth forum!

Basically you have secondary amenorrhea or absence of periods/menstruation due to some thing. Not having periods for last 6 months could be due to post pill amenorrhea where periods stop because of suppression of pituitary gland in the brain by the contraceptive pills or depot shots. So this is the first thing that has to be ruled out.

If this is not the case, then other causes will have to be looked into. Stress and anxiety is a major factor. Thyroid problems and abnormal levels of FSH, LH, prolactin, androgen hormones or male hormones and estrogen hormones too can be the cause. MRI of brain may be required to rule out pituitary tumors secreting prolactin. Another major contributor is polycystic ovarian syndrome (PCOS). This can be diagnosed by a CT scan or abdominal ultrasound and tests for insulin resistance.

Smoking is also often associated with secondary amenorrhea and can be worse in presence of stress. Sometimes tumors of the ovaries and brain may also cause absence of menstruation. Severe anemia and malnutrition, excess weight gain or weight loss, hypothyroidism too can contribute. If there is a thyroid nodule then hypothyroidism can be a cause. Please consult an endocrine expert.

Since a confirmed diagnosis cannot be given on net please discuss these possibilities with your gynecologist once and get this investigated. Hope this helps. Take care!

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