Abnormal Bleeding in Women: Causes, Symptoms and Treatment Options

The term abnormal uterine bleeding (AUB) refers to irregular or unusual bleeding from the uterus, most commonly in women of reproductive age who are not pregnant. However, abnormal bleeding can also occur during pregnancy or after menopause—and in those cases, it should be taken especially seriously.

If you experience bleeding after menopause, it is important to consult a doctor promptly, as it is always considered abnormal. Similarly, bleeding during pregnancy may have harmless causes, but it can also signal complications and requires medical attention.

What counts as “abnormal”?

Every woman’s menstrual cycle is different, but you should seek medical advice if you notice:

• Heavier-than-usual periods
• Bleeding that lasts longer than normal
• Bleeding between periods
• Bleeding after sexual intercourse
• Irregular or unpredictable cycles
• Any bleeding after menopause

If your periods interfere with daily life or cause significant discomfort, that’s a strong sign something may be wrong.

Heavy menstrual bleeding

Some women experience heavy menstrual bleeding (previously called menorrhagia), where blood flow is excessive or prolonged. This can lead to:

• Severe cramping
• Fatigue (sometimes due to anemia)
• Disruption of normal activities

Although common, it should not be ignored—effective treatments are available.

Possible causes of abnormal bleeding

AUB can result from a wide range of conditions, including:

• Hormonal imbalance (common cause)
• Fibroids (non-cancerous growths in the uterus)
• Polyps (growths in the uterine lining)
• Endometriosis (uterine tissue growing outside the uterus)
• Infections (such as STDs or pelvic infections)
• Medications (e.g., birth control or hormone therapy)
• Cancer (rare, but must be ruled out in persistent cases)

Risks and complications

In some cases, abnormal bleeding may indicate more serious conditions such as:

• Uterine fibroids, which can cause heavy and prolonged bleeding
• Endometrial cancer, often linked to irregular or postmenopausal bleeding

While serious causes are less common—especially in younger women—it’s important not to ignore symptoms.

When to see a doctor

You should consult a healthcare provider if you experience:

• Unexplained or persistent vaginal bleeding
• Heavy bleeding lasting longer than usual
• Bleeding between cycles
• Unusual discharge or pelvic pain

Treatment options

Treatment depends on the underlying cause and may include:

• Hormonal therapy (to regulate cycles)
• Medications for infections or clotting disorders
• Lifestyle changes
• In some cases, minor procedures or surgery

Abnormal bleeding can be distressing, but many causes are treatable. Paying attention to changes in your cycle and seeking timely medical advice can help ensure proper care and peace of mind.