Many women experience abnormal vaginal bleeding or
spotting between periods sometime in their lives. Vaginal bleeding is
considered to be
abnormal if it occurs:
When you are not expecting your menstrual
period.
When your menstrual flow is lighter or heavier than what is
normal for you.
At a time in life when it is not expected, such as
before age 10, when you are pregnant, or after
menopause.
Causes of abnormal bleeding
Abnormal vaginal
bleeding has many possible causes. By itself, it does not necessarily indicate
a serious condition.
Because bleeding can indicate a problem with
pregnancy, possible pregnancy should always be considered in a woman of
childbearing age.
Spotting to minimal bleeding may be
normal, but any bleeding during pregnancy needs to be evaluated by your
doctor.
Heavy vaginal bleeding or bleeding that occurs before 12
weeks may indicate a serious problem, including an
ectopic pregnancy or
miscarriage.
Heavy vaginal bleeding or
bleeding that occurs after 12 weeks also may indicate a serious problem, such
as
placenta previa.
Polycystic ovary syndrome (PCOS) is a hormone imbalance that interferes with normal
ovulation which can cause abnormal bleeding.
Medicines, such as
birth control pills, sometimes cause abnormal vaginal bleeding. You may have
minor bleeding between periods during the first few months if you have recently
started using birth control pills. You also may have bleeding if you do not
take your pills at a regular time each day. For more information, see the topic
Birth Control.
Infection of the
pelvic organs (vagina, cervix, uterus, fallopian tubes, or ovaries) may cause
vaginal bleeding, especially after intercourse or douching. Sexually
transmitted diseases (STDs) are often the cause of infections. For more
information, see the topic
Exposure to Sexually Transmitted Diseases.
Pelvic inflammatory disease (PID)
causes inflammation or infection of the uterus, fallopian tubes, or ovaries
which can cause abnormal bleeding.
Other, less common causes of abnormal vaginal bleeding
that may be more serious include:
Heavy bleeding during the first few weeks after
delivery (postpartum) or after an abortion may occur because the uterus has not
contracted to the prepregnancy size or because fetal tissue remains in the
uterus (retained products of conception).
If you are age 40 or
older, abnormal vaginal bleeding may mean that you are entering
perimenopause. In a woman who has not had a menstrual
period for 12 months, vaginal bleeding is always abnormal and should be
discussed with your doctor.
Treatment of abnormal vaginal bleeding
depends on the cause of the bleeding.
Review the Emergencies and
Check Your Symptoms section of this topic to determine if and when you should
see your health professional.
Unexpected
vaginal bleeding with lower abdominal pain and fainting
Check Your Symptoms
If you answer yes to any of the following questions, click on the "Yes" in front of the question for information about how soon to see a health professional.
Review
health risks that may increase the seriousness of your
symptoms.
Have you had
minimal vaginal bleeding for 48 hours after
intercourse or douching, and you are sure that the bleeding is not caused by
your menstrual period?
You need an appointment within the next 1 to 2 weeks if you answer "Yes" to
the following question.
Have you had
minimal vaginal bleeding or spotting more than one
time after intercourse or douching, and you are sure that the bleeding is not
caused by your menstrual period?
If you have answered "No" to the above questions, go back to Check Your Symptoms and continue to answer the questions to evaluate your symptoms.
Review
health risks that may increase the seriousness of your
symptoms.
Note:
Some light bleeding or spotting is expected
for up to 6 weeks following a
hysterectomy. If your vaginal bleeding is heavier or
different than what you were told to expect, call your doctor to discuss the
problem.
Call your health professional immediately if you answer "Yes" to
the following question.
Do you think
that your vaginal bleeding is caused by a medicine you are taking?
Note:
If your answer is Yes:
Call the doctor who prescribed the
medicine to determine whether this is an expected side effect of this medicine.
An appointment may not be needed.
If you are taking a medicine not
prescribed by a doctor, stop taking it. Call your doctor if you feel you need
to keep taking the medicine or if you need help to control your symptoms after
you stop the medicine.
If you have answered "No" to the above questions, go back to Check Your Symptoms and continue to answer the questions to evaluate your symptoms.
Are you using continuous hormone replacement therapy, and you have
intermittent vaginal bleeding that has continued for longer than 6 months after
starting therapy?
Unexpected
vaginal bleeding with lower abdominal pain and fainting
Check Your Symptoms
If you answer yes to any of the following questions, click on the "Yes" in front of the question for information about how soon to see a health professional.
Review
health risks that may increase the seriousness of your
symptoms.
Have you had
minimal vaginal bleeding for 48 hours after
intercourse or douching, and you are sure that the bleeding is not caused by
your menstrual period?
You need an appointment within the next 1 to 2 weeks if you answer "Yes" to
the following question.
Have you had
minimal vaginal bleeding or spotting more than one
time after intercourse or douching, and you are sure that the bleeding is not
caused by your menstrual period?
If you have answered "No" to the above questions, go back to Check Your Symptoms and continue to answer the questions to evaluate your symptoms.
Review
health risks that may increase the seriousness of your
symptoms.
Note:
Some light bleeding or spotting is expected
for up to 6 weeks following a
hysterectomy. If your vaginal bleeding is heavier or
different than what you were told to expect, call your doctor to discuss the
problem.
Call your health professional immediately if you answer "Yes" to
the following question.
Do you think
that your vaginal bleeding is caused by a medicine you are taking?
Note:
If your answer is Yes:
Call the doctor who prescribed the
medicine to determine whether this is an expected side effect of this medicine.
An appointment may not be needed.
If you are taking a medicine not
prescribed by a doctor, stop taking it. Call your doctor if you feel you need
to keep taking the medicine or if you need help to control your symptoms after
you stop the medicine.
If you have answered "No" to the above questions, go back to Check Your Symptoms and continue to answer the questions to evaluate your symptoms.
Are you using continuous hormone replacement therapy, and you have
intermittent vaginal bleeding that has continued for longer than 6 months after
starting therapy?
If a visit to a health professional is not needed immediately, see the Home Treatment section for self-care information.
Home Treatment
There is no home treatment for
abnormal vaginal bleeding. With some types of vaginal bleeding, it may be okay
to wait to see if the bleeding stops on its own. Be sure to review the Check
Your Symptoms section to determine if and when you need to see a doctor. If the
bleeding continues or gets worse, a visit to a doctor is needed to determine
the reason for the bleeding.
If you are using tampons for abnormal
vaginal bleeding, be sure to change them often and do not leave one in place
when the bleeding has stopped. A tampon left in the vagina may put you at risk
for
toxic shock syndrome (TSS). TSS is a rare but
life-threatening illness that develops suddenly after a bacterial infection
rapidly affects several different organ systems.
Use the Check Your Symptoms section to
evaluate your symptoms if any of the following occur during home
treatment:
Abnormal bleeding
returns.
Bleeding increases or becomes severe enough to cause
weakness or lightheadedness.
Fever or pain in the lower abdomen
develops.
Symptoms do not improve within 2
months.
Symptoms become more severe or frequent.
Prevention
You may be able to prevent abnormal vaginal
bleeding.
Maintain a healthy weight. Women who are
overweight or underweight have more problems with abnormal vaginal bleeding.
For more information, see the topic
Healthy Weight.
If you are using birth
control pills, be sure to take them as directed and at the same time every day.
For more information, see the topic
Birth Control.
If you are taking
hormone replacement therapy, take your pills as
directed and at the same time every month.
Learn to practice
relaxation exercises to reduce and cope with stress. Stress may cause abnormal
vaginal bleeding. For more information, see the topic
Stress Management.
Take a
nonsteroidal anti-inflammatory drug (NSAID), such as
naproxen or ibuprofen. NSAIDs reduce menstrual bleeding by decreasing the
production of substances called prostaglandins. The usual recommended dose of
ibuprofen is 400 mg every 6 hours. Begin taking the medicine on the first day
of your period and continue taking it until your menstrual bleeding stops. Be
sure to follow these nonprescription medicine precautions.
Carefully read and follow all label directions on the
medicine bottle and box.
Use, but do not exceed, the maximum
recommended doses.
Do not take a medicine if you have had an
allergic reaction to it in the past.
If
you have been told to avoid a medicine, call your doctor before taking
it.
If you are or could be pregnant, call your doctor before using
any medicine.
You can help your
doctor diagnose and treat your condition by being prepared to answer the
following questions:
What was the date of your last menstrual
period?
When was your previous period? Was it
normal?
Do you have regular cycles, such as a period every 25 to 35
days?
If you have been through
menopause, how long ago was your last menstrual
period?
How
severe (heavy) is your usual menstrual flow? What is
the average length of each period, and how many pads or tampons do you use per
day during your period? Do you pass many clots and how big are they? Do you
change pads or tampons during the night? Keep track of your menstrual flow on a
calendar, and take your calendar to show your doctor.
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