Abnormal uterine bleeding (AUB) is one of the most common reasons for visiting a gynecologist. At the same time, many women perceive their menstrual patterns as a personal characteristic for years and may not realize that they fall outside the normal range.
Let’s clarify what is considered normal and what is not.
A normal menstrual cycle:
• cycle length — 24–38 days
• regularity — when the difference between the shortest and the longest cycle does not exceed ~7–9 days
• duration of menstruation — up to 8 days
• moderate blood loss (up to ~80 ml)
• without significant weakness, dizziness, or disruption of daily activities
If your cycle looks different, it may be a reason to seek evaluation.
Not considered normal:
• a pad or tampon becomes fully soaked within 1–2 hours
• large blood clots
• bleeding lasting longer than 8 days
• cycles occurring more often than every 24 days
• delays longer than 38 days
• bleeding between periods
• bleeding after sexual intercourse
• any bleeding after menopause
Typical evaluations may include:
• gynecological examination
• pelvic ultrasound
• complete blood count and ferritin (to rule out anemia)
• pregnancy test (in reproductive age)
• hormonal evaluation — if indicated
• in some cases — endometrial biopsy
Important: AUB is not a diagnosis but a symptom that requires identifying the underlying cause. Abnormal bleeding may be associated with a wide range of conditions — from functional hormonal disturbances to structural uterine disorders — therefore each case requires an individual approach and appropriate evaluation.
Menstruation is an important indicator of women’s health. If it falls outside the normal range, it is not something to simply get used to, but a reason to pay attention to your health and seek medical advice.