If you're not pregnant, causes of missed or irregular periods can include eating disorders, stress, increased exercise, and medication. ... Missed or Irregular Periods - Topic Overview...
women.webmd.com/tc/missed-or-irregular-periods-topic-ov... women.webmd.com/tc/missed-or-irregular-periods-topic-overview
Alternate Name(s): Missed periods; Lack of menses; Periods - missed; Amenorrhea ... The absence of menstrual flow may be primary (menstruation fails to begin before age 16) or secondary (menstruation begins at the appropriate age, but later ceases for 6 or more months in the absence of normal causes such as pregnancy, ...
www.nlm.nih.gov/medlineplus/ency/article/003149.htm#Def... www.nlm.nih.gov/medlineplus/ency/article/003149.htm#Definition
Nothing strikes fear into the heart of any woman like a missed period, unless she is trying to get pregnant. Am I pregnant? Pregnancy is the first thing that we think of when our period is delayed. But is pregnancy the ... Illness; A sudden, short illness or even a longer illness can cause your periods to be delayed.
pregnancy.about.com/od/amipregnant/a/missedperiod.htm pregnancy.about.com/od/amipregnant/a/missedperiod.htm
25 Signs of Pregnancy and Pregnancy Symptoms ... Do You Recognize the 25 Early Signs of Pregnancy? ... If you're like everyone else you're trying to figure out what the signs of pregnancy or pregnancy symptoms are and how likely they are to mean that you are pregnant. You can ask other people, you can worry in silence,
pregnancy.about.com/od/signssymptoms/a/25signsofpg.htm
What follows is a table indicating some of the most common reasons why women have abnormalities in their periods. If a pregnancy test is negative, but menstrual problems persist, it could be a sign of a more serious condition requiring immediate medical attention. ... missed ovulation (no egg released from ovary)
www.epigee.org/health/lateperiod.html www.epigee.org/health/lateperiod.html
But missed periods do not necessarily mean that you are pregnant. If you're sexually active and have missed a period, then it is worthwhile to take a pregnancy test. You may still want to take a pregnancy test even if you have been using contraception.
www.epigee.org/guide/lateperiod.html www.epigee.org/guide/lateperiod.html
A woman is not considered to have secondary amenorrhea until she has missed three menstrual periods in a row. However, the causes of secondary amenorrhea are generally the same factors or conditions that can lead to a skipped period.
www.medicinenet.com/missed_menstrual_period/symptoms.ht... www.medicinenet.com/missed_menstrual_period/symptoms.htm
Dear Alice, What is the usual treatment for missed periods? I haven't had my period for half a year (ever since I stopped taking the pill). I have also lost some weight. What are the health effects of missed periods? ... Since you have missed over three consecutive periods, make an appointment with your...
www.goaskalice.columbia.edu/0814.html
Missed Period with Negative Pregnancy Test? Find out some Reasons Why ... Of course, if you are on birth control or Depo, or have recently discontinued birth control, then cycle regularity can be an issue, as well as missed periods. These medications do function by altering the balance of your reproductive hormones.
www.early-pregnancy-tests.com/missed-period.html www.early-pregnancy-tests.com/missed-period.html