|  | Dental Health | Cavities

Irregular Periods: Causes, Health Impacts & When to Seek Care

A menstrual cycle is considered irregular if it varies by more than 7–9 days from month to month, occurs less than every 21 days or more than every 35 days, or stops for >90 days (amenorrhea) without pregnancy/menopause. Irregularity is common in adolescence, perimenopause, and postpartum, but persistent irregularity warrants evaluation.

Common Causes

CategoryExamples
Hormonal/EndocrinePCOS (most common), Thyroid disorders (hypo/hyper), Hyperprolactinemia, Premature Ovarian Insufficiency (POI), Perimenopause
Lifestyle/EnvironmentalSignificant weight loss/gain, Excessive exercise, Chronic stress, Eating disorders, Shift work/travel
MedicationsHormonal contraceptives (starting/stopping), Antipsychotics, Antidepressants, Chemotherapy, Blood thinners
Structural/GynecologicUterine fibroids, Polyps, Adenomyosis, Endometriosis, Cervical stenosis
Systemic/MedicalUncontrolled Diabetes, Celiac disease, Liver/Kidney disease, Coagulopathies

Potential Consequences

  • Fertility challenges: Unpredictable ovulation makes conception harder; may indicate anovulation.
  • Endometrial hyperplasia/cancer risk: Unopposed estrogen from chronic anovulation → thickened lining.
  • Anemia: Heavy/prolonged bleeding (menorrhagia).
  • Bone health: Low estrogen (e.g., hypothalamic amenorrhea) → osteopenia.
  • Metabolic health: PCOS links to insulin resistance, T2DM, cardiovascular risk.
  • Quality of life: Unpredictability, pain, mood impact, social disruption.

When to See a Clinician

  • No period for >90 days (not pregnant/menopausal)
  • Cycles consistently <21 or >35 days
  • Bleeding >7 days or soaking pad/tampon hourly
  • Severe pain (dysmenorrhea) unrelieved by NSAIDs
  • Bleeding between periods or after sex
  • Trying to conceive >12 months (<6 months if >35)
  • New irregularity after previously regular cycles

Typical Evaluation

  1. History (menstrual calendar, symptoms, meds, lifestyle)
  2. Physical + pelvic exam
  3. Labs: hCG, TSH, Prolactin, FSH/LH, Androgens, HbA1c, CBC
  4. Pelvic ultrasound (ovaries, uterus, lining)
  5. Further: Hysteroscopy, Endometrial biopsy, MRI (pituitary) if indicated

Treatment targets the cause: lifestyle modification, hormonal regulation (OCPs, progesterone IUD, metformin for PCOS), thyroid management, surgical correction, fertility support. Track your cycles (app/calendar)—this data is invaluable for diagnosis.

Cavities - Related Articles