Spotting but no Period: Causes, Treatment

In this blog, I regularly update everyday questions asked by my patients and close friends. I got an email from a friend asking what’s the cause of spotting but no period.

She is 45 years old, married, already has four kids, and intermittently has mild lower abdominal pain. Also, she is searching for another baby which has really got her concerned about any change in her reproductive tract.

Luckily, she picked up my call, and I was able to ask her further questions. In the end, I noticed she was not pregnant but was already experiencing some perimenopausal symptoms. Perimenopause is the transition period before menopause when the menstrual cycle becomes more irregular.

Spotting but no period could mean many things. And depending on your age, and if you regularly have unprotected intercourse, it could also signify pregnancy.

I know for young ladies, missing your period, especially when you are not planning for a baby, can be traumatizing. If you have, and instead get brown spotting, it is possible you are pregnant.

If you are trying to conceive, there is a chance that your spotting instead of your period could be as a result of pregnancy.

But there are also other causes of spotting but no period. It could be as mild as vaginal infections or uterine fibroids. In some cases, it may be related to polycystic ovarian syndrome (PCOS) or hormone imbalance. Less commonly, it can be caused by precancerous changes or cancer of the uterus or cervix.ACOG+1

I have put up this guide to help you think through some possible reasons you are spotting instead of your period. But, as always, it’s best to see your doctor as early as you can. This article is for education only and does not replace medical advice.

This post explains the common causes of spotting but no period.

You can also read more about abnormal bleeding from ACOG here:
https://www.acog.org/womens-health/faqs/abnormal-uterine-bleeding ACOG

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Spotting instead of your period: 2 Important questions

If you are spotting yet no period, it is important you try to answer the following questions on your own. This will help streamline the reason you are having spotting.

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1. When did you notice the spotting?

The timing of the spotting is important as well. Did you notice spotting right before your period or after a missed period? Have you been experiencing spotting in between your periods?

If you have noticed vaginal spotting just before your period, and suddenly you missed your period, it could mean that you may be pregnant.

If you’ve missed your period and you are spotting, there is a possibility that you are already pregnant. This spotting might be harmless in early pregnancy, but it can also be a sign of miscarriage or ectopic (tubal) pregnancy, especially if it is associated with pain or heavy bleeding. Vaginal infections can also cause spotting around this time. Any bleeding with a positive pregnancy test should be checked by a doctor.ACOG

If you’ve regularly noticed vaginal spotting throughout your menstrual cycle for a few months, then pregnancy is less likely, but still possible if you are having unprotected sex. You should still do a pregnancy test if there is any chance of pregnancy. Persistent spotting may be due to fibroids, polyps, endometrial hyperplasia (abnormal thickening of the lining), hormonal imbalance, or, less commonly, cancer affecting the uterus or cervix.ACOG

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2. How heavy is the bleeding?

Another important question, of course, is the flow. Is flow light or heavy? Is flow as heavy as your menstrual period?

Again, if you have light spotting, and it is happening before your period, it could be an early sign that you may be pregnant. Other causes of light vaginal spotting are small uterine fibroids, vaginal infections, contraceptives (including IUDs and birth control pills), vaginal tear during intercourse, and sexually transmitted infections.Mayo Clinic+1

If bleeding is heavy and like your period, or if you are soaking through a pad or tampon every 1–2 hours, it is important you see a doctor right away. It could be a uterine fibroid, a miscarriage, ectopic pregnancy, bleeding disorder, or something serious.Mayo Clinic

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So, what causes spotting but no period?

If you’ve been able to answer the above questions, it’s time to walk you through in detail the reason you are spotting but no period.

Here are some common causes you should know.

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1. Pregnancy

Yes, as previously mentioned, spotting instead of your period can be a sign that you are already pregnant. So, if you are expecting, it is important you take a test right away.

But just a second before I explain how pregnancy causes spotting, it is important you answer these questions to think about whether you might be pregnant:

• Have you been involved in regular unprotected sexual intercourse? If yes, pregnancy is possible.

• Is this the first time you are experiencing spotting? If yes, then there is a chance you are pregnant.

• Is spotting light, brown, pinkish, or reddish? If yes, it is possible that you are pregnant.

• Do you feel tired, fatigued, nausea, vomiting, back pain, mild belly cramps, increased appetite, increased urination, mood swings? If yes, it is possible that you are pregnant.

• Did you miss your period? If yes, it’s time to take a pregnancy test.

Some women also notice more clear or whitish vaginal discharge in early pregnancy, but this alone does not prove pregnancy.

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So, how does pregnancy cause vaginal spotting?

If you’ve been pregnant before it is possible you never had spotting as a sign of pregnancy. In fact, it can easily be missed because it is just a light bleeding or brown discharge that could be ignored.

Most times, women do not experience spotting as a sign of pregnancy. Studies suggest that about 1 in 4 pregnant women may notice some light spotting in early pregnancy.WebMD

This spotting is often called implantation spotting.

If you are confused, let me explain.

After unprotected sexual activity, your male partner’s sperm moves through the cervix and uterus into the fallopian tube (a tube-like extension from the uterus). Fertilization of the egg usually happens in the fallopian tube, forming an embryo. The embryo is then slowly transported to the uterus where it is fitted into a thickened endometrium already covering the inside of the uterus.NCBI

This endometrium is a thickened blood-filled layer of the uterus. If you do not get pregnant, it is actually washed out as your period.

Around the time the embryo attaches to the lining, some women notice light spotting from the vagina. This is what many people call implantation bleeding. Not everyone gets it, and it is usually much lighter than a normal period.Mayo Clinic

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Here are the most characteristic signs of implantation spotting

• It is lighter than your period.

• It only lasts a few days compared to your period – often one or two days.

• You may feel cramps just before your period.

• You may also begin to experience other signs of pregnancy – waist pain, vomiting, food aversion, increased appetite, breast pain and so on.

You can read more about bleeding in early pregnancy from ACOG here:
https://www.acog.org/womens-health/faqs/bleeding-during-pregnancy ACOG+1

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What to do?

It is quite difficult if you are expecting and yet not sure if spotting is due to pregnancy. I recommend you take a home pregnancy test first and then see your doctor, especially if the test is positive or if you have pain or heavy bleeding.

If you’ve tested and you still get a negative result, despite having other signs of pregnancy, it could happen because of a wrong technique or if the test was carried out too early.

Instead of waiting “a few weeks”, a safer approach is to wait about one week and repeat the test if your period still has not come. If you still get a negative result and your period has not arrived, see your doctor for a proper evaluation. At that point, it is very unlikely that you are pregnant, and other causes of spotting should be considered.Healthline

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2. Uterine fibroids

Another cause of spotting instead of your period is uterine fibroids. If you are not familiar with the term, they are non-cancerous growths that occur in the uterus. They can appear inside the uterine cavity, in the muscle of the uterus, or even on the outer surface of the uterus.Mayo Clinic+1

These growths, medically called fibroids (or leiomyomas), can trigger bleeding in a lot of women. It could be a mild recurrent spotting or heavy vaginal bleeding that may last for days.

A fibroid can be a small mass or a huge mass, sometimes filling the abdominal cavity. If it is a huge fibroid, you may experience other symptoms like:

• Difficulty moving your bowel or passing urine

• Feeling of fullness or pressure in the lower abdomen

• Back pain or pain during intercourse

Most commonly, fibroids change the flow of your period. Many women with fibroids complain of heavy periods. Menstrual period may take even more than seven days, sometimes lasting up to 2 weeks, and you may also notice bleeding or spotting between periods.Mayo Clinic

If you experienced any of the above symptoms, talk to your doctor. There are different treatment options depending on your age, your symptoms, and whether you still want to have children.Mayo Clinic+1

More on fibroids from Mayo Clinic:
https://www.mayoclinic.org/diseases-conditions/uterine-fibroids/symptoms-causes/syc-20354288

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3. Vaginal infections

Another common reason you could be dealing with spotting but no period is vaginal infections and pelvic inflammatory disease (PID).

Vaginal infections could have mild symptoms like excessive clumpy white discharge and itching. In some cases, you may experience vaginal spotting too, especially when the cervix is inflamed.

Common vaginal infections that are sexually transmitted are chlamydia, trichomoniasis, and gonorrhea. When you get these infections and don’t quickly take action to treat them, they may travel through your vagina to the uterus and fallopian tubes causing pelvic inflammatory disease (PID).CDC+2Cleveland Clinic+2

Symptoms of vaginal infections and PID include:

• Pain during intercourse

• Back and lower abdominal pain

• Painful urination

• Yellow or green, smelly discharge

• Bleeding or spotting after sex

• Fever or feeling generally unwell

• Infertility or difficulty getting pregnant (especially with untreated PID)

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What can you do for vaginal infections?

Thank God, many vaginal infections are easy to treat and cure once properly diagnosed. So, it’s essential you see your doctor or go to a clinic and tell them your symptoms rather than just buying over-the-counter drugs on your own.

At first, you will be asked some questions, and investigations will be carried out. Some of these tests may get you uncomfortable – like inserting a swab into your vagina to get a specimen for the test. Other urine and blood tests may be carried out.

If your doctor finds an infection, he or she places you on some antibiotics for one or two weeks, depending on the type of infection.

During treatment, you will be advised to stay away from intercourse. And you should also get your partner tested and treated. This is necessary to prevent reinfection that can happen if you have intercourse with him again without treatment.

For more information on PID from the CDC:
https://www.cdc.gov/pid/about/index.html CDC

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4. Both extremes of age

Another reason you could get spotting instead of your period is your age.

Perimenopause (around 40–51 years)

Yes, if you are between 40 and 51, it is possible you could experience some form of irregular bleeding or spotting instead of your usual period.

That is, when you get your period, it may be so light than what you usually experienced over the years. It could only last for a day or two and may be very light.

This happens because of perimenopause, a condition that naturally takes its course in all women. As you grow older, the number of follicles reduces, resulting in months where you do not ovulate regularly.

This means you could have:

• Light or heavy periods

• Periods that come closer together or further apart

• Hot flashes

• Decreased sexual appetite

• Shorter or longer cycles

Some cycle changes are expected at this age, but any new, very heavy, or very frequent bleeding, and any bleeding after 12 months without a period, should be checked by your doctor.ACOG+

If you subsequently miss your period for 12 consecutive months, then you enter a new stage of your life called menopause. After that, any bleeding or spotting from the vagina is considered abnormal and needs evaluation.

ACOG has a useful FAQ on perimenopausal and postmenopausal bleeding:
https://www.acog.org/womens-health/faqs/perimenopausal-bleeding-and-bleeding-after-menopause

Teenage girls (just started menstruation)

Alternatively, young ladies who just started having menstruation may have to deal with an irregular period. Sometimes it comes early, and other times it comes late.

You may also experience a light period or spotting some months, and during other months you may get a heavy flow during your period.

In such cases, there isn’t much to worry about if you feel generally well. Your hormones are still fluctuating, and it may take a few years for your hormones to settle down. However, if bleeding is very heavy, very painful, or you have gone more than 3 months without a period, you should see a doctor.Mayo Clinic+1

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5. Cancer

Finally, another serious cause of spotting but no period is cancer. Yes, it is not a common cause of spotting, but if you’re already in menopause and experience any vaginal bleeding or spotting, it is important you see your doctor right away.

It could be endometrial hyperplasia (thickening of the lining), endometrial carcinoma (cancer of the lining of the uterus) or cervical cancer.MedlinePlus

Symptoms can include:

• Abdominal or pelvic pain

• Vaginal or vulva pain

• Smelly, reddish or watery discharge

• Bleeding after sex

• Weight loss

• Increased frequency of urination

Bleeding after menopause is never considered “normal aging” and should always be checked.Mayo Clinic

Talk to a doctor ASAP if:

• You are postmenopausal and have any spotting

• You have bleeding with weight loss, fatigue, or pelvic pain

• You have persistent spotting for more than a few cycles without explanation