Textbook of Urgent Care Medicine, Chapter 41, Vaginal Bleeding

Published on November 5, 2026

Original author: Thomas J. Sunshine

Originally published in 2014. Substantially updated and clinically reviewed in 2026.

INTRODUCTION

The evaluation of the patient with vaginal bleeding can vary significantly among age groups and by clinical presentation. Understanding whether the patient is premenarchal, menstrual, or postmenopausal will help guide decision making. The full evaluation of obstetric bleeding is not extensively reviewed in this chapter. Although many etiologies are ultimately treated with interventions beyond the urgent care setting, it is incumbent on the urgent care provider to know which conditions can wait and which require more immediate attention.

PRESENTATION

The patient reports dark or bright red vaginal blood seen, for example, on bathroom tissue or after elimination.

Quantify bleeding by the number of fully saturated pads or tampons, passage of clots, duration, and impact on daily activities. Note whether bleeding is ongoing, increasing, or associated with dizziness, syncope, abdominal or pelvic pain, fever, or possible pregnancy.

TRIAGE PEARLS

Consider a hypovolemic or anemic state, with testing to include orthostatic vital signs and pulse oximetry.
Perform reflex pregnancy testing for patients of child-bearing age at the time of triage.
Assess blood pressure, pulse, mental status, pallor, and active bleeding. Syncope, persistent tachycardia, hypotension, marked weakness, or heavy ongoing blood loss warrants immediate emergency transfer; a normal initial hemoglobin or stable vital signs does not exclude significant bleeding.
For a positive pregnancy test, assess immediately for ectopic pregnancy and pregnancy-related hemorrhage. Pelvic pain, shoulder pain, syncope, peritoneal findings, or hemodynamic changes warrant EMS transfer. Do not delay transfer to obtain serial hormone levels.
A negative urine pregnancy test can be falsely negative very early in pregnancy. When symptoms or timing remain concerning, use quantitative serum human chorionic gonadotropin (hCG) testing and appropriate urgent reassessment rather than relying on a single negative result.

HISTORY PEARLS

Determine whether the patient is premenarchal, menstrual, or postmenopausal.
Ask about birth control and medication use.
- Determine what menstrual cycles are like both with and without any hormone therapies.
- Review all medications that may interfere with hepatic function or the hypothalamic-pituitary axis, including psychotropics.
- Also review anticoagulants, antiplatelet agents, hormonal contraception, recently initiated or discontinued therapy, and possible pregnancy-related medications.
Inquire about pregnancy history.
- Record the last menstrual period, cycle regularity, possibility of conception, recent pregnancy or pregnancy loss, fertility treatment, and prior ectopic pregnancy or tubal surgery.
Gather information on the patient’s family or personal history of gynecologic malignancy, bleeding disorders, and thyroid or liver disease.
- Ask specifically about heavy bleeding since menarche, easy bruising, epistaxis, bleeding after dental work or delivery, and family history of a bleeding disorder, especially in adolescents.
Differentiate between vaginal, urinary tract, and rectal bleeding.
- Not all “vaginal bleeding” is from the uterus.
- Vulvar, vaginal wall, and cervical sources of bleeding are also possible.
Review the patient’s last gynecologic visit and any history of pelvic ultrasounds or surgeries.
Determine bleeding volume and tempo, including passage of large clots, pad saturation, intermenstrual bleeding, bleeding after intercourse, and bleeding occurring after 12 months without menses.

PHYSICAL EXAM PEARLS

Conduct a general physical exam.
- Have the patient empty her bladder before the exam, and save the urine for testing as indicated.
- Assess orthostatic vital signs with volume concerns.
Pay specific attention to signs of thyroid disease or a bleeding disorder.
Check for laparoscopic, low midline, or transverse scars during the abdominal exam.
Evaluate for signs of androgenization or precocious puberty if appropriate.
Perform an abdominal examination for tenderness, guarding, distention, or masses. An ill-appearing patient or one with a suspected ectopic pregnancy should not have emergency evaluation delayed for a complete office pelvic examination.
When clinically indicated and appropriate to age, symptoms, consent, and patient preference, perform a chaperoned pelvic examination to identify external, vaginal, or cervical sources of bleeding. Document the examination, chaperone, and relevant findings.
- Note any external lesions, bruising, or areas of unusual tenderness.
- Evaluate the vagina and vaginal wall for abnormal discharge or odor indicative of vaginitis.
- Examine the external surface of the cervix, which may be a source of bleeding.
- Examine the os for any protruding growth such as a polyp or even a prolapsing fibroid.
- Use gonorrhea and chlamydia nucleic acid amplification testing when clinical findings or sexual history indicate; a Pap test is screening for cervical cancer and is not a routine diagnostic test for an acute bleeding episode.
When pregnancy is known or suspected, defer cervical manipulation and any digital examination in the second or third trimester until placental previa and other obstetric emergencies have been excluded by the receiving obstetric team. A qualified clinician may perform a speculum examination when indicated and safe.
Assess the size, shape, and contour of the uterus for growths consistent with fibroids.
- Submucosal fibroids will not be detected by exam, but they can produce vaginal bleeding.
Complete the exam by assessing the adnexa when indicated and feasible; a normal examination cannot exclude an ectopic pregnancy, adnexal disorder, or endometrial disease.
Premenarchal patients should have a respectful, noninvasive external examination with age-appropriate assent and caregiver support. Do not perform an internal vaginal examination or collect an internal vaginal swab in a prepubertal child in routine urgent care practice.

TESTING PEARLS

Pregnancy test and possible HCG level test.
Obtain a urine pregnancy test in patients of reproductive potential, followed by a quantitative serum hCG when indicated. Patients with positive or equivocal tests and bleeding need a location-and-viability evaluation, generally with transvaginal ultrasonography at a hospital or early pregnancy service.
Tailor laboratory testing to severity: complete blood count for moderate or heavy bleeding, suspected anemia, or ongoing blood loss; blood type, antibody screen, and crossmatch at the receiving hospital if hemorrhage is suspected. Point-of-care hemoglobin, when available, is not a substitute for clinical assessment.
Coagulation testing and specialized von Willebrand studies should be guided by a positive bleeding-disorder history, anticoagulant exposure, or unexplained heavy bleeding. In adolescents with significant heavy menstrual bleeding, arrange evaluation of anemia and ferritin and consider a bleeding-disorder workup.
Endocrine studies are not required routinely for every episode; consider thyroid testing when the history or examination suggests dysfunction and defer specialized hormonal evaluation to longitudinal care.
Pelvic ultrasound.
Transvaginal or transabdominal ultrasonography is the preferred first-line imaging when uterine structural pathology is suspected, and urgent transvaginal ultrasonography is appropriate for bleeding in early pregnancy. Imaging availability should not delay emergency transfer.

DIAGNOSIS PEARLS

The initial concerns in a patient with vaginal bleeding are anemia, volume status, rate of bleeding, and the impact on overall coexistent health concerns. The initial hemoglobin count may not reflect the true red blood cell volume, because of inadequate time for patient volume equilibration. Generally, the causes of abnormal bleeding are as shown in Table 1, but a specific diagnosis may be based on a patient’s age group.

Table 1. General Causes of Abnormal Vaginal Bleeding

Cause
Pregnancy
Infections
Endocrine or hypothalamic problems
Pharmacologic agents
Structural abnormalities
Normal physiology

Premenarchal Vaginal Bleeding

Restraining or sedating the patient should be avoided.
A full vaginal and speculum exam should be excluded.
The primary diagnostic consideration is vulvovaginitis and its subsequent irritation.
Also consider a foreign body, external trauma, urethral prolapse, dermatologic disease such as lichen sclerosus, precocious puberty, and rarely a tumor. A small amount of newborn withdrawal bleeding in the first days of life is a distinct physiologic circumstance.
Skin irritation, leading to bleeding, can also come from noninfectious causes such as irritating chemicals or clothing or poor hygiene.
Avoid empiric antimicrobial treatment without evidence of infection; candidiasis is uncommon in otherwise healthy prepubertal children. If infection is suspected, take only an appropriate external or introital sample after consulting pediatric guidance.
The patient should be examined for evidence of skin trauma, allowing an index of suspicion for abuse.
Evidence of trauma is not necessarily present or frequent in sexual abuse cases.
A provider’s concerns about abuse should follow applicable institution or state guidelines.
Assess suspected sexual abuse using trauma-informed methods and local child protection pathways; do not undertake a forensic internal examination or unnecessary swabbing in urgent care.
Bleeding that is active and coming from higher than can be seen by labial separation should be referred to a gynecologist, with possibilities including precocious puberty, trauma, foreign body, and tumor.

Bleeding in the Reproductive Age Group

Vaginal wall bleeding is most often traumatic or associated with a foreign body, and it should be diagnosed with a speculum exam.
Cervical bleeding usually occurs from the endocervix and can arise from an infection such as chlamydia, a polyp, or occasionally a myoma.
Uterine bleeding can either be associated with a normal menstrual (ovulatory) pattern or a nonmenstrual, anovulatory pattern.
There are many conditions in which the regular menstrual pattern is not disrupted and intermenstrual bleeding occurs.
Obtaining a careful medical history may help to differentiate the two distinct bleeding patterns, one consistent with menses and the other irregular.
Contemporary terminology uses abnormal uterine bleeding (AUB), described by volume, regularity, frequency, and duration. The FIGO PALM–COEIN system organizes causes into structural and nonstructural categories after pregnancy is excluded.

Table 2. PALM–COEIN Causes of Abnormal Uterine Bleeding

Structural (PALM)	Nonstructural (COEIN)
Polyp	Coagulopathy
Adenomyosis	Ovulatory dysfunction
Leiomyoma (fibroid)	Endometrial causes
Malignancy and hyperplasia	Iatrogenic causes
	Not otherwise classified

Following menarche, excessive menstrual bleeding should raise concern for a bleeding disorder, including von Willebrand disease. Adolescents may have anovulatory cycles, but heavy or persistent bleeding is not automatically physiologic.
Menstrual cycles become irregular as a woman approaches menopause, because of fluctuating levels of follicle-stimulating hormone and luteinizing hormone, which in turn produce fluctuating levels of ovarian hormones. The endometrium responds accordingly. This age group also has higher incidences of myomas, polyps, and precancerous and cancerous conditions.
Abnormal growths inside the endometrial cavity that are independent of any hormone patterns are possible. Common ones include myomas, polyps, and hyperplastic or malignant endometrium.
Endometrial tissue sampling generally should be arranged for AUB at age 45 or older, and for younger patients with persistent bleeding, failed treatment, or risk factors for endometrial neoplasia such as prolonged unopposed estrogen exposure.

Postmenopausal Bleeding

Bleeding after 12 months without menstruation requires gynecologic evaluation to exclude endometrial hyperplasia or cancer, even when atrophy appears likely.
ACOG’s 2026 update recommends transvaginal ultrasonography together with endometrial tissue sampling in the initial evaluation of most patients with postmenopausal bleeding. Ultrasound alone is reserved for carefully selected patients with one episode, a fully visualized endometrium no thicker than 4 mm, no strong cancer risk factors, reliable prompt follow-up, and explicit counseling to return if bleeding recurs.

TREATMENT PEARLS

Any bleeding with a positive pregnancy test requires an assessment of ectopic pregnancy risk. In routine urgent care settings without immediate transvaginal imaging and appropriate obstetric follow-up, arrange same-day emergency or early pregnancy evaluation; abdominal pain, syncope, peritoneal findings, or heavy bleeding requires emergency transfer.
Active bleeding associated with anemia, volume depletion, or a complicating medical condition should be treated in a facility capable of blood transfusion and any necessary surgical or medical support.
For bleeding in early pregnancy, serum hCG trends and transvaginal ultrasonography may be required to determine pregnancy location and viability. A single hCG result does not rule out ectopic pregnancy, and management must not be delayed while awaiting a 48-hour repeat in a symptomatic patient.
Rh D immune globulin decisions in the first trimester have changed and differ between specialty organizations. ACOG’s 2024 update suggests forgoing routine Rh testing and RhIg after abortion or pregnancy loss before 12 weeks, while SMFM supports offering prophylaxis when feasible; later gestation and other clinical scenarios have separate indications. Coordinate with obstetric protocols rather than automatically administering RhIg to every Rh-negative patient with early bleeding.
For nonpregnant, hemodynamically stable patients with AUB, short-term medical management may include oral progestins, combined hormonal contraceptives, or tranexamic acid, with selection based on bleeding severity, medical history, contraindications, thromboembolic risk, and ability to arrange follow-up. Avoid routine high-dose estrogen prescriptions without an appropriate diagnostic and safety assessment.
Long-term cycle management should include follow-up with gynecology or an appropriate primary-care clinician; urgently refer patients with persistent heavy bleeding, suspected structural lesions, or cancer risk factors.
Bleeding suspected to be caused by a fibroid or polyp should be evaluated by ultrasound, and the patient should be referred to a gynecologist.
Infection-related causes, such as endometritis or cervicitis, should be treated with the appropriate antibiotics (see Chapter 42, “Sexually Transmitted Infections”).
Sexual partner treatment is indicated for specified infections (such as chlamydia or gonorrhea) but not for all causes of cervicitis or endometritis; follow pathogen-specific guidance.
Do not initiate topical vaginal estrogen for presumed atrophy in a patient with unexplained postmenopausal bleeding before appropriate gynecologic assessment for malignancy.

DISPOSITION PEARLS

Refer patients with heavy active bleeding and hypotension, persistent tachycardia, orthostasis, syncope, or symptomatic anemia to an emergency department. A remote history of anemia without current symptoms or significant bleeding does not itself require emergency transfer.
Patients with a coexisting morbidity that renders mild hypovolemia important, such as active heart disease, should also be referred to an emergency department.
Gynecologic referral should be done for patients whose condition is otherwise stable but who need longer-term cycle management, currently desire pregnancy, or need evaluation and possible surgery for structural causes of bleeding.
Constipation is common with iron therapy.
Arrange iron replacement for documented or strongly suspected iron deficiency and follow-up testing as indicated. Oral hydration does not replace resuscitation in hemorrhage.

Table 3. Urgent Care Disposition for Vaginal Bleeding

Clinical situation	Recommended action
Hemodynamic instability, syncope, severe pelvic pain with possible pregnancy, peritoneal signs, or major ongoing blood loss	Activate EMS; stabilize within urgent care capabilities; transfer for emergency evaluation and resuscitation.
Positive pregnancy test with bleeding and pregnancy location not confirmed	Same-day pregnancy-location evaluation (usually ED or an established early pregnancy unit); use EMS if unstable or severe symptoms.
Second- or third-trimester bleeding	Urgent obstetric emergency assessment; avoid digital cervical examination before placental pathology is excluded.
Stable, nonpregnant patient with moderate/heavy AUB or symptomatic anemia	Same-day evaluation when bleeding burden or symptoms warrant; consider CBC and consult for treatment and prompt follow-up.
Premenarchal bleeding not clearly minor external irritation or injury	Timely pediatric/gynecologic assessment; emergency/child protection pathway if major trauma, active bleeding, or abuse concern.
Any postmenopausal bleeding, even a single light episode	Prompt gynecology referral for diagnostic evaluation, usually ultrasound plus endometrial tissue sampling.
Stable, mild bleeding with a reassuring evaluation	Outpatient management with written precautions, follow-up, and reassessment if bleeding persists or increases.

MEDICOLEGAL PEARLS

In all patients of child-bearing age with vaginal bleeding, perform and document a pregnancy test.
Document why an early negative test was considered reliable or why further testing and follow-up were arranged when pregnancy remained possible.
Check and document orthostatic vital signs in women with significant vaginal bleeding.
Examine patients for and document any signs of trauma.
Distinguish among bleeding from the bladder versus the rectum versus the vagina.
Use extreme care when evaluating vaginal bleeding in the second trimester of pregnant patients.
Record the amount and course of bleeding, patient stability, examination limitations or declined examination, pregnancy risk, follow-up arrangements, return precautions, and transfer discussions.

REFERENCES