Irregular period: When should you see a doctor?

What is an irregular menstrual cycle?

According to gynecologists, irregular periods are periods that are less than 21 days or more than 35 days apart.
A menstrual cycle is considered irregular when it lasts more than seven days.
If your period is heavier or lighter than normal it can be considered irregular.
If you are getting more pains and cramps than usual, this is also a sign of irregularity in your cycle.
Missing three or more periods in a row without being pregnant, breastfeeding, going through menopause, or taking certain medications.

Is it normal to have irregular periods?

There are some cases where irregular periods are not a source of concern. Such as with young girls who have recently started puberty, or when there are abnormal conditions affecting the body such as a major change in weight, or excessive exercise.

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What causes irregular periods?

According to Cleveland Clinic here are the main reasons for irregular periods:

Stress
Change in weight
Birth control pills
Polycystic ovaries syndrome
Endometriosis
Pelvic inflammatory disease
Uterine polyps or fibroids
Premature ovarian insufficiency
Other Medical conditions, such as bleeding disorders, thyroid problems, hormonal imbalances.

When should you see a doctor?

You should consult your physician if any of these issues occur:

If you experience unusually Severe pain during your period or between periods
Abnormally heavy bleeding or passing large clots
An abnormal vaginal discharge
High fever
A period lasting longer than a week
Vaginal bleeding or spotting between periods or after having sex.
Nausea or vomiting during your period

The doctor will perform a pelvic exam, and an ultrasound and will run further blood tests if needed he might take a biopsy, to properly diagnose your condition. Once the results are ready the doctor can determine the cause of your irregular menstrual cycle and treat it accordingly.