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period poverty

Was ist eine abnorme Gebärmutterblutung und wann sollte ich mir Sorgen machen?

Obwohl manche Frauen ihre Periode wie ein Uhrwerk bekommen, ist es nicht ungewöhnlich oder beunruhigend, wenn die Periode etwas früher oder später kommt oder gelegentlich etwas stärker oder schwächer ausfällt. Auch zwischen den Perioden und manchmal nach dem Sex kann es zu Blutungen kommen - hier erfahren Sie, wann Sie sich Sorgen machen sollten und was zu tun ist.

Most women have menstrual cyclesthat last about 28 days on average, but this can vary between 24-34 days. Your period, when there is a blood flow, will usually be from 4 to 7 days at the beginning of the cycle. However, each woman's cycle is different and unique to her.

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Expected variations in periods

In the first few years of having periods, the amount of blood loss may not always be the same and it can change with each cycle from light to very heavy. The cycles can range from 21 to 45 days apart until the main hormone levels (oestrogen and progesterone) stabilise, and ovulation - when your egg is released - becomes regular.

Light blood spotting - a very small amount of bleeding - for a few days before menstruation starts is common. Birth control pills (hormonal contraception) may cause occasional blood spotting or breakthrough bleeding - bleeding whilst taking the pills - in the first few months of taking them1.

Coils, including the copper coil and those containing progestogens, such as the Mirena, can also cause irregular bleeding during the first months after insertion - as can the contraceptive implant. The Mirena is often used to help women with heavy bleeds as it can reduce them or stop periods all together in some people.

In the years leading up to menopause (perimenopause), hormone levels fluctuate again and then go down. So periods may become heavier, then lighter, then spaced further apart or become irregular before they eventually stop.

Abnormal uterine bleeding

Abnormal uterine bleeding means you bleed for longer than you usually do or when you are not expecting it. It can occur regularly or irregularly throughout a cycle and may happen often or only from time to time. You can bleed:

  • Between your periods - intermenstrual bleeding.

  • After sexual intercourse - postcoital bleeding.

  • For shorter or longer than is usual for you.

  • Heavier and have clots or flooding.

  • After menopause - postmenopausal, after 12 months of not having had a period.

Speak to your doctor if you experience any bleeding during pregnancy.

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What causes abnormal uterine bleeding?


There is a long list of possible causes of abnormal vaginal bleeding, so it's essential to see your doctor or healthcare professional2. They will likely check for, or refer you to a specialist to investigate:

Postmenopausal abnormal bleeding

See your doctor if you experience abnormal bleeding when you are postmenopausal - you have not had a period for more than 12 months3.

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What can help with abnormal uterine bleeding?

There are several different treatments that can help abnormal bleeding - these include:

  • Taking hormones.

  • Stopping hormones.

  • Having a coil.

  • Non-steroidal anti-inflammatory medicines - such as mefanamic acid or ibuprofen.

  • Tranexamic acid.

  • Endometrial treatments for conditions such as endometriosis.

  • Chirurgie.

Let your doctor know as soon as possible if you notice abnormal bleeding at any time, but pay special attention to unexpected postmenopausal bleeds or bleeds after sexual intercourse.

Weitere Lektüre

  1. FSRH: Problematic bleeding with hormonal contraception.

  2. National Institute for Health and Care Excellence:Heavy menstrual bleeding: assessment and management.

  3. UpToDate: Approach to the patient with postmenopausal uterine bleeding.

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