Why Am I Bleeding After Menopause? Causes, Concerns, and When to See a Doctor

If you’ve gone a full 12 months without a period, you’re considered postmenopausal. At that point, your ovaries have largely stopped producing estrogen and your cycles are done. It makes sense then, that you wouldn’t expect to bleed ever again. So if you do notice spotting, or even what looks like period blood, it’s jarring. And the question is immediate: Why is this happening?

Here’s the clear, non-negotiable guidance: Any bleeding after menopause needs to be communicated to your doctor and potentially evaluated.¹ Not because you should panic, but because this is one symptom that shouldn’t be ignored.

If you’re still in the menopause transition phase, this guide can help you sort out what’s normal vs. not: Bleeding After the Menopausal Transition: What Is Normal? Below, we’ll address the different possible causes of bleeding after menopause, and what to do about it.

Why doctors want to know about your bleeding

Postmenopausal bleeding is a frequent reason women seek care. And most of the time, the cause is benign.²

But here’s why clinicians take it seriously: Bleeding is the earliest and most common presenting symptom of endometrial cancer.³ This cancer is the most common gynecologic cancer in the U.S.and depending on the population studied, about 5–10% of women with postmenopausal bleeding will be diagnosed with it.³ Luckily, because it shows up early as bleeding, it’s often diagnosed at an early stage when treatment outcomes are strongest.³

So while endometrial cancer might not be a likely cause of your bleeding or spotting, it’s always good to have your doctor examine you and rule it out.

The most likely causes (and what your doctor is thinking)

When you walk into an exam room with postmenopausal bleeding, there’s a mental checklist your clinician is running through. Some causes are very common. Others are less common, but important not to miss.

You’re new to hormone therapy

If you’ve recently started menopausal hormone therapy or changed your dose, bleeding can happen. This is especially true in the first few months of combined estrogen-progestogen therapy.⁴ Hormones can stimulate the uterine lining, causing it to shed. That said, if you’re experiencing bleeding after being on a stable dose for a while, you should discuss it with your doctor. 

Vaginal and endometrial atrophy

The most likely explanation for spotting or bleeding after menopause is vaginal and endometrial atrophy. After menopause, estrogen levels drop. The tissues of the vagina and uterus become thinner, drier, and more fragile. This condition is referred to as genitourinary syndrome of menopause (GSM).⁵

Fragile tissue bleeds more easily, and may cause other symptoms like dryness, irritation, and discomfort with intercourse. You might have spotting after sex, or bleeding after a pelvic exam. You might even have light bleeding with no clear trigger.

Luckily, vaginal and endometrial atrophy is benign and highly treatable. Local vaginal estrogen is one of the most effective, evidence-based options we have It stays local, with minimal systemic absorption.⁵

Endometrial polyps

If you have unpredictable spotting that comes and goes without a pattern, it may be caused by endometrial polyps, which are small growths in the uterine lining. They’re common, especially with age, and most are benign.⁶ Your clinician may remove the polyps in an in-office procedure. 

Endometrial hyperplasia

In some cases, the uterine lining doesn’t thin after menopause, it thickens, causing bleeding or spotting. That’s called endometrial hyperplasia,⁷ and it is typically driven by unopposed estrogen, which just means there’s not enough progesterone to counterbalance the estrogen.9

Certain forms of hyperplasia can progress to cancer if left untreated.⁷ Your doctor may prescribe progesterone therapy. 

Fibroids

Fibroids typically shrink after menopause as estrogen and progesterone levels decrease. But some persist, and may still contribute to bleeding, especially if they grow into the uterine lining.⁸ In some cases, if you have bleeding and other symptoms, your clinician may suggest removing the fibroids.10 

Infection or inflammation

Inflammation of the vagina, cervix, or uterine lining can also lead to bleeding.¹ This is more likely if bleeding is accompanied by:

• Discharge
• Odor
• Pelvic discomfort

Medications

Not all bleeding starts in the uterus. Sometimes the cause is systemic. Blood thinners and certain medications can make bleeding more likely or more noticeable.¹

But even if you suspect your medication is causing bleeding, it’s still important to check with your doctor, to rule out any other causes. 

When to call your doctor

If you’ve gone a full year without a period and notice any bleeding, even light spotting, call to inform your doctor.¹ Don’t wait to see if it happens again. Don’t try to rationalize it away. This is one of those moments where being proactive pays off.

How they’ll diagnose the issue

If you see your clinician for postmenopausal bleeding, the visit will likely start with a conversation. Your doctor will ask about the bleeding: when it started, how often it’s happening, and whether there have been any recent changes like hormone therapy, new medications, or symptoms like dryness or discomfort. Often, this alone points toward common, benign causes.¹

Next, they may do a pelvic exam to check for things like thinning vaginal tissue, irritation, or infection, which are frequent and treatable reasons for bleeding.¹ In some cases, your doctor may also use a transvaginal ultrasound to look at the uterus and measure the lining. Depending on the findings and your individual risk factors, they may take a biopsy or recommend additional testing.²

The bottom line

Bleeding after menopause is not something to ignore, but it’s also not something to panic about. Most causes are benign. Many are easily treatable.

But like any symptom, spotting or bleeding after menopause is your body flagging that something has changed, and giving you the opportunity to check in early, when it matters most.