Written by The Menopause Charity.
Perimenopause is a natural phase in a woman's life. It often begins a few years before menopause, which is one year after your last period. During perimenopause, your body undergoes significant hormonal changes as your ovaries slow down and you run out of eggs.
The average age of perimenopause is around 45 years. However, everyone’s journey is different. 1 in 100 women under 40 and 1 in 1000 under 30 can experience premature menopause. Some people experience menopause because of surgery, for example, when the ovaries are removed or due to treatment such as chemotherapy. Menopause can also affect trans and non-binary people who may not identify as female.
The hormonal changes during perimenopause can affect various aspects of your health, including the menstrual cycle, fertility, and overall well-being. Heavy periods during perimenopause are often the result of these hormonal changes, as well as other factors.
Your periods are considered heavy if you need to change your period products every one to two hours. You may need to double on products together, or your periods may last more than a week. During perimenopause, you may also experience flooding, which is when you bleed through your clothes or bedding.
Understanding the link between perimenopause and heavy periods can help you manage the symptoms and navigate this phase with greater ease.
Perimenopause can cause heavy periods for many women.
During perimenopause, the levels of oestrogen and progesterone fluctuate as the ovaries slow their hormone production. These changes can disrupt your normal menstrual cycle and lead to irregular or heavy periods. The decline in oestrogen levels during perimenopause can cause the uterine lining to become thicker, resulting in heavier menstrual flow. Additionally, fluctuations in progesterone levels can affect the stability of the uterine lining, leading to irregular and heavier bleeding.
Uterine fibroids are noncancerous growths that develop in the uterus and can contribute to heavy periods during perimenopause. These fibroids are more common in women aged 30-40 and tend to shrink after menopause. However, during perimenopause, when oestrogen levels fluctuate, fibroids may grow larger and cause symptoms such as heavy menstrual bleeding, pelvic pain, and pressure.
Changes in the endometrium, the lining of the uterus, can also contribute to heavy periods during perimenopause. Hormonal changes can disrupt the normal balance between oestrogen and progesterone, leading to excessive growth of the endometrial tissue. This abnormal growth can result in heavy periods and other menstrual irregularities.
Other factors that can contribute to heavy periods during perimenopause include stress, lifestyle factors, and medical conditions such as thyroid disorders or pelvic inflammatory disease. These factors can exacerbate hormonal imbalances and contribute to heavier periods during perimenopause.
Heavy periods, also known as menorrhagia, can be a challenging symptom for many women during perimenopause. Fortunately, there are several tips and treatments available to help manage this condition and improve quality of life.
Blood clots during heavy periods are a common occurrence for many women during perimenopause.
Hormonal fluctuations lead to irregularities in the menstrual cycle. These hormonal changes can affect the uterine lining, making it thicker and more prone to shedding in clumps, which may appear as blood clots passed during your period.
Uterine fibroids and polyps are typically benign (non-cancerous) growths in a woman’s uterus. They can contribute to heavy periods and blood clots by blocking the flow of menstrual blood.
Hormone changes during perimenopause can lead to many symptoms, including changes to your periods, difficulty sleeping and urinary symptoms.
Heavy periods, or menorrhagia, are a common symptom experienced by many women during perimenopause. Persistent or severe symptoms should be checked by your healthcare professional.
Your healthcare professional can perform a thorough assessment. This may include a physical examination, medical history review, and diagnostic tests if necessary, to determine the underlying cause of symptoms. Your healthcare professional can recommend appropriate treatment options for you to consider.
It is important to track your menstrual cycle and act on any change.
Use The Menopause Charity symptom checker to help you and your healthcare professional work out whether you may be experiencing perimenopause or menopause. They can rule out any other underlying conditions and offer advice for further care.