How Heavy Is Too Heavy?
A gynaecologist's guide to recognising heavy periods and understanding when to seek help.
Many women assume that heavy periods are simply something they have to put up with.
They may have always had heavy periods, have friends or family members with similar symptoms, or have been told that heavy bleeding is "normal."
But heavy menstrual bleeding can significantly affect quality of life and may be a sign of an underlying condition that deserves assessment and treatment.
The challenge is that many women are never told what a normal period should actually look like.
What Is Considered a Normal Period?
Every woman's menstrual cycle is different, but generally a normal period:
lasts between 2 and 7 days
occurs every 21 to 35 days
does not interfere significantly with work, exercise, sleep or daily activities
can be managed with regular sanitary products without frequent accidents or flooding
While some variation is normal, periods should not leave you exhausted, anaemic or planning your life around access to a bathroom.
Signs Your Period May Be Too Heavy
Heavy menstrual bleeding isn't defined only by the amount of blood loss. More importantly, it's about the impact on your daily life.
Some signs that your bleeding may be heavier than normal include:
soaking through a pad or tampon every 1–2 hours
needing to use both pads and tampons together
waking overnight to change sanitary products
passing large blood clots
leaking through clothing or bedding
avoiding work, exercise or social activities because of bleeding
feeling constantly fatigued during your period
If any of these sound familiar, it's worth discussing with your GP or gynaecologist.
Heavy Periods Can Cause Iron Deficiency
One of the most common consequences of heavy menstrual bleeding is iron deficiency.
Symptoms may include:
fatigue
poor concentration
dizziness
headaches
shortness of breath with exercise
reduced energy levels
Many women attribute these symptoms to being busy, stressed or simply getting older when low iron may be contributing.
What Causes Heavy Periods?
There are many possible causes of heavy menstrual bleeding.
Fibroids
Fibroids are benign growths within the muscle of the uterus and are a common cause of heavy bleeding, particularly in women in their 30s and 40s.
Adenomyosis
Adenomyosis occurs when tissue similar to the lining of the uterus grows within the muscle of the uterus.
It commonly causes:
heavy periods
severe cramping
pelvic pain
pelvic pressure
Endometrial Polyps
Polyps are small growths within the lining of the uterus that can contribute to irregular or heavy bleeding.
Hormonal Causes
Irregular ovulation can lead to heavier or less predictable bleeding patterns.
This is commonly seen during:
adolescence
perimenopause
PMOS (previously known as PCOS)
Bleeding Disorders
Less commonly, underlying clotting disorders may contribute to heavy bleeding.
Heavy Periods During Perimenopause
Many women notice that their periods become heavier, longer or less predictable during their 40s.
While hormonal fluctuations can contribute, it's important not to assume that heavy bleeding is "just perimenopause."
Assessment may still be recommended to exclude other causes.
How Are Heavy Periods Investigated?
Investigations may include:
a detailed history
blood tests, including iron studies
pelvic ultrasound
cervical screening review
endometrial assessment when indicated
The aim is to identify any underlying cause and guide treatment options.
What Treatments Are Available?
Treatment depends on the underlying cause, symptom severity and your reproductive goals.
Options may include:
Medical Treatment
tranexamic acid
anti-inflammatory medications
hormonal treatments
the contraceptive pill
Mirena intrauterine device
Ryeqo® in selected situations
Surgical Treatment
When medical management is ineffective or not appropriate, options may include:
hysteroscopy and polypectomy
endometrial ablation
myomectomy
hysterectomy
Treatment should always be individualised.
When Should I Seek Help?
You should consider seeking medical review if:
your periods are affecting your quality of life
you are regularly soaking through pads or tampons
you pass large blood clots
you experience symptoms of iron deficiency
your periods are becoming heavier over time
bleeding is affecting work, exercise, sleep or social activities
How We Can Help
As a Specialist Obstetrician and Gynaecologist, Anna's role is to:
listen carefully to your symptoms and concerns
investigate possible causes of heavy menstrual bleeding
arrange appropriate imaging and blood tests
develop an individualised treatment plan
discuss both medical and surgical treatment options
support you in finding a management approach that aligns with your lifestyle and goals
Heavy periods are common, but they are not something you simply have to put up with. Effective treatments are available, and seeking help can make a significant difference to your health and quality of life.
