Bleeding after sex in perimenopause

What counts as bleeding after sex

Doctors call it postcoital bleeding: spotting or bleeding during or after sex that has nothing to do with your period. A 2014 review in Obstetrics and Gynecology International by Tarney and Han puts it at 0.7 to 9 percent of women who still have periods, so it is far from rare. It can be a pink streak on the tissue, a few red drops on the sheet, or brown spotting the next morning. All of it counts, and the American College of Obstetricians and Gynecologists (ACOG) puts bleeding or spotting after sex on its short list of bleeding that is not normal at any stage, perimenopause included.

In perimenopause there is a catch. Cycles go short, long and patchy, so a period that starts early can arrive the night after sex and look like the same thing. A useful line to draw for the doctor is timing: bleeding that starts within hours of sex and stops within a day points one way, and bleeding that carries on and gets heavier like a period points another. If you cannot tell, say so. Our page on irregular periods in perimenopause describes the cycle changes that blur it.

Why it can start in your 40s

The NHS page on bleeding between periods or after sex names four causes of bleeding after sex. Each has a reason to turn up, or not, at this stage of life.

Dryness and thinner tissue

As estrogen falls, the lining of the vagina gets thinner, drier and less stretchy, and friction during sex can make it bleed. The Tarney and Han review lists this vaginal atrophy among the causes of postcoital bleeding and says it can happen in anyone whose estrogen drops, not only after menopause. It often comes with burning, less lubrication and pain during sex. Our guide to vaginal dryness and bladder changes goes through the whole picture, including the newer name, genitourinary syndrome of menopause.

Polyps

Cervical polyps are small, soft growths on the neck of the womb. They are usually harmless, and they bleed easily when touched. The same review says they typically turn up in women in their 40s and 50s who have had children, which puts them squarely in the perimenopause years. Polyps inside the womb (endometrial polyps) can bleed after sex too.

Infection

Chlamydia and other sexually transmitted infections inflame the cervix and make it bleed on contact. A new relationship in midlife carries the same infection risk as at any age, and a test is simple: a urine sample or a swab, which the NHS says a sexual health clinic or GP can do.

Cervical ectropion

Ectropion is a patch of the softer cells from inside the cervix sitting on its outer surface. It is not a disease. The review links it mainly to the teenage years, pregnancy and the combined pill, so in your 40s it is more likely if you take the pill.

Less common causes

An NHS Greater Glasgow and Clyde guideline for GPs adds a coil, hormonal contraception, a recent smear test or treatment to the cervix, and a thickened womb lining (endometrial hyperplasia). Prolapse, where the womb or vaginal walls drop, can also rub and bleed. Cancer of the cervix is the cause everyone worries about, and the next section deals with it directly.

How often it turns out to be cancer

Rarely, and the chance grows with age. Studies in the Tarney and Han review found cervical cancer in 3 to 5.5 percent of the bleeding-after-sex cases they followed, with lower figures in countries that run screening programmes. Their age table puts the risk that bleeding after sex comes from cervical cancer at about 1 in 44,000 for women aged 20 to 24, and about 1 in 2,400 for women aged 45 to 54. Bleeding after sex is also the first symptom for about one in nine women diagnosed with cervical cancer.

The NHS symptom page for cervical cancer lists bleeding during or after sex alongside changes to discharge, pain during sex and pain in the lower back or pelvis. It also says these symptoms are very common and usually come from something else, and that finding cancer early makes treatment more likely to work. That is the case for reporting a bleed even when you are fairly sure it is dryness.

Why a clear smear test does not settle it

Many women put off the appointment because their last screening came back fine. The NHS explains what screening actually does: it checks a sample of cells for high-risk types of HPV, the virus behind nearly all cervical cancers, and then for early cell changes. It is designed for people with no symptoms. A symptom such as bleeding after sex goes to a GP whatever your screening history, and NI Direct, the Northern Ireland health service site, says the same in its advice on irregular bleeding.

If you are behind on screening, the Glasgow guideline says the GP takes a smear at the appointment. If you are up to date, the GP looks at the cervix directly instead of relying on the old result.

When to see a doctor, and how soon

• Any bleeding after sex: book a GP or sexual health clinic appointment. The NHS treats it as non-urgent but always worth checking.
• Over 40: the Glasgow guideline refers women in this age group to gynaecology or colposcopy as urgent, to be seen within 14 days. Rules differ between health services, but it shows how seriously the symptom is taken at this age.
• A missed period, unusual bleeding and pain in your tummy: ask for an urgent GP appointment or call NHS 111. The NHS says this could be an ectopic pregnancy, which is still possible in perimenopause (see can you get pregnant during perimenopause).
• Soaking a pad or tampon every hour for more than two hours, with dizziness, chest pain or breathlessness: get emergency help. ACOG treats that combination as an emergency.
• After 12 months with no period: the Glasgow guideline handles bleeding after sex as postmenopausal bleeding, which has its own fast route. Our guide to bleeding after menopause explains it.

What the GP checks

Expect questions first: when the bleeding happens, your period dates, your contraception, your screening history, whether sex hurts, and whether a new partner means an infection test makes sense. The NHS lists a possible pregnancy test, a blood test, an STI test and an examination of the vagina and cervix. The NHS cervical cancer page describes that examination: a speculum to see the cervix, a gentle internal check, and a swab. You can ask for a female doctor and have someone with you.

If the cervix looks normal and the bleeding goes on, the next steps the NHS names are an ultrasound scan, a colposcopy (a magnified look at the cervix) or a hysteroscopy (a thin camera inside the womb). The Glasgow guideline suggests a scan through the vagina for women over 40 when nothing is found lower down. Our article on how abnormal uterine bleeding is diagnosed explains each test. Treatment depends on what the examination finds, and that conversation is for your doctor. Peri Signals does not give treatment advice.

What to note before the appointment

Bleeding after sex is awkward to describe, and a few written facts make it easier to say out loud:

• the dates it happened, and the first day of your periods around them
• how soon after sex it started, how long it lasted, and the colour
• whether sex was painful or dry
• any change in discharge, or pain in your lower tummy or back
• your contraception or hormone medicine, and the date of your last smear

The printable symptom diary has a row for spotting and bleeding, and the one-page appointment summary puts bleeding flags at the top for the doctor to see first. Either one turns a hesitant "I've had a bit of bleeding" into dates the GP can read in a minute.

My take

If this happens to you in your 40s, I'd assume dryness or a polyp is the likely reason and book the appointment anyway, within the next week or two, without waiting for a second bleed. I would not let a clear smear from two years ago talk me out of it, because screening was never designed to explain a symptom. And I'd say "bleeding after sex" in those words at the start of the appointment, separately from any other change to my periods, so it is not lost in a longer story about irregular cycles.

Related reading

If you also have bleeding between periods, spotting between periods in perimenopause covers it, and types of vaginal bleeding sets every kind side by side. The bleeding checker sorts your own pattern into what to report and how soon. Everything on cycle changes is gathered under periods and bleeding.