Spotting between periods: causes and when to get help

Spotting between periods should always be checked by a GP or sexual health clinic, even if the bleeding has stopped. It is not usually serious, but a few spots on the toilet paper are still worth mentioning.

Describing the bleeding

Spotting means small spots of blood, rather than a flow that soaks a period pad. The NHS uses pink, red or brown spots on underwear or toilet paper to describe it in its pregnancy guidance. That description doesn’t mean pregnancy is the cause.

A menstrual period is the shedding of blood and tissue from the womb. Bleeding between periods is a separate pattern to mention at your appointment. If you’re unsure whether to call what you saw spotting or an early period, start with a description of the bleeding.

If you notice spotting before a period, record the spotting and any fuller flow separately. “Spots on Tuesday; usual flow began Thursday” is one way to put it. If you aren’t sure where one episode ends and another starts, keep that uncertainty in the note. You don’t need to know the cause before asking for advice.

Book a check, even if the bleeding stops

For bleeding between periods or after sex, book a GP or sexual health appointment. Your assessment may include a pregnancy test, blood tests, STI tests and an examination of the vagina and cervix. Further investigations depend on the findings.

You don’t have to wait until the bleeding finishes before being examined: an examination can be done while you are bleeding. Ask the service about arrangements when booking if you’re unsure.

The NHS cervical screening guidance says to see a GP about symptoms such as bleeding between periods, during or after sex, or after menopause. Do not wait for your next screening appointment to raise those symptoms.

After menopause, arrange a GP assessment even if bleeding happens only once or is only a small amount. Postmenopausal bleeding is usually not serious, but can be a sign of cancer. It calls for a GP check and isn’t automatically an emergency. The heavy-bleeding and emergency symptoms below still need faster help.

What could be causing it?

Several causes can produce similar bleeding. These are possibilities a clinician may consider; a calendar alone cannot tell you which one applies to you.

Contraception. Hormonal contraception can change bleeding patterns. Irregular use, including stopping and starting or missing pills, patches or rings, can be involved. MedlinePlus also lists intrauterine devices as a possible cause of spotting.

Tell the clinician which method you use and what has changed. If you missed contraception, ask a pharmacist or sexual health service for advice about that specific method; the bleeding pattern cannot tell you what to take next. Read about periods after stopping hormonal contraception for the difference between returning fertility and returning periods.

Ovulation. A little vaginal bleeding or discharge can happen during ovulation, when an ovary releases an egg. Some people also have a brief ache or twinge on one side of the lower tummy. The NHS page on ovulation pain describes these symptoms, but also lists other conditions that can cause similar pain.

A date near the middle of your cycle isn’t enough to label bleeding as ovulation spotting. If pain is severe and painkillers haven’t helped, keeps returning, or happens when you may be pregnant, seek urgent assessment.

Pregnancy. Possible causes of bleeding in pregnancy include implantation in very early pregnancy and changes in cervical blood vessels, as well as miscarriage and ectopic pregnancy. Calling a spot “implantation bleeding” at home cannot tell you which explanation applies.

If you know you’re pregnant, seek urgent advice for spotting or light bleeding even without pain. Contact your maternity service; in the UK, use NHS 111 if you cannot reach a maternity or early pregnancy service. Elsewhere, contact your local urgent medical service.

Infections and changes in the cervix or womb. Sexually transmitted infections, including chlamydia, can cause bleeding between periods or after sex. You may be offered STI testing, and a sexual health clinic is an appropriate place to ask for help.

Polyps and fibroids can cause bleeding between periods. Bleeding after sex can be caused by cervical polyps, cervical ectropion and vaginal dryness. Ectropion means a change to the surface of the cervix. Unusual bleeding can sometimes be a sign of cancer, which is another reason to have it assessed.

Medicines and other conditions. MedlinePlus also lists blood-thinning medicines and an underactive thyroid as possible causes. Bring your medicine names to the appointment. Mention any connection you suspect, while keeping in mind that the bleeding alone cannot tell you whether a medicine is responsible.

Pain or heavy bleeding needs faster help

Get urgent medical advice if pregnancy is possible and you have unusual bleeding with tummy or pelvic pain. NHS ectopic pregnancy guidance says to seek help even without a positive pregnancy test. In the UK, contact your GP urgently or NHS 111; elsewhere, use your local urgent medical service.

Sudden, intense tummy pain with marked dizziness or fainting can indicate a ruptured ectopic pregnancy. Call 999 in the UK, or your local emergency number. If you’re pregnant and bleeding, severe tummy pain, shoulder pain, faintness or bleeding that soaks a pad soon after putting it on also needs emergency help.

Contact a healthcare professional straight away if bleeding becomes very heavy. ACOG describes an emergency when hourly pad or tampon changes continue for more than two hours alongside chest pain, breathlessness and lightheadedness or dizziness. Seek emergency care without waiting for an appointment. There’s more on the practical signs in recognising heavy periods and knowing when to get help.

Take these details to your appointment

MedlinePlus recommends recording timing, flow and accompanying symptoms. Keep the note short:

• When bleeding happened, including its relationship to your period or sex.
• Spots or fuller flow, and how often products became soaked.
• Any pain, dizziness or other symptoms, and whether pregnancy is possible.
• Your contraception, other medicines and recent changes.

For help organising the details, see preparing notes for a healthcare appointment. Write approximate dates as approximate.