Miscarriage: Field Recognition and Emergency Response

Types and What to Expect

Threatened Miscarriage

Bleeding and/or cramping in early pregnancy, but the cervix is closed and the pregnancy may be viable.

Signs: Light to moderate vaginal bleeding (often described as spotting or light like a period), mild cramping. Pregnancy symptoms (nausea, breast tenderness) may continue.

Outcome: Approximately 50% of threatened miscarriages continue to healthy delivery. 50% progress to complete or incomplete miscarriage.

Management: Rest, pelvic rest (no intercourse or tampons), monitor for worsening. Do not insert anything vaginally. Monitor bleeding quantity — more than a pad per hour suggests progression.

Inevitable Miscarriage

Cervix is dilating, cramping is significant, and pregnancy loss will occur. Characterized by stronger cramping than a threatened miscarriage, with heavier bleeding. The cervix will be open if examined.

Complete Miscarriage

All pregnancy tissue has passed. After passage, cramping substantially reduces, and bleeding decreases to light spotting.

Expected timeline: Most complete within 1-2 weeks of diagnosis, sometimes within days.

Confirmation: Heavy cramping and bleeding followed by passage of tissue (often grayish-white products of conception embedded in clotted blood), then dramatic improvement in both pain and bleeding. The pregnancy test will remain positive for up to 4 weeks after completion — not a useful confirmation marker.

Monitoring after: Continue monitoring for signs of retained tissue (see below) for 2-4 weeks.

Incomplete Miscarriage

Pregnancy has partially passed but tissue remains in the uterus. This is the dangerous scenario in a field setting.

Signs suggesting incomplete:

• Continued heavy bleeding (soaking a pad per hour) after what appeared to be passage of the pregnancy
• Persistent significant cramping beyond what seems proportionate
• Fever developing after miscarriage (infection of retained tissue)
• Continued strong pregnancy test 4+ weeks post-miscarriage

Risk: Retained products of conception cause ongoing hemorrhage and are a nidus for uterine infection (septic miscarriage).

Missed Miscarriage

The embryo has died but the uterus has not yet begun to expel the pregnancy. Often discovered incidentally by lack of heartbeat on Doppler after it was previously heard. Cramping and bleeding may be absent.

Management: Either await natural expulsion (may take weeks), or misoprostol if available (see below), or surgical evacuation.

Assessing Hemorrhage Severity

Normal miscarriage bleeding: Heavy initially (heavier than a period), decreasing over days. Clots are normal and expected.

Abnormal bleeding:

• Soaking more than 1 pad per hour for 2 consecutive hours
• Clots larger than a golf ball
• Bleeding that is not decreasing over the first 24-48 hours
• Any bleeding with signs of shock

Signs of hemorrhagic shock (requires immediate intervention):

• Dizziness and lightheadedness, especially with sitting or standing
• Rapid heart rate > 100 bpm
• Pale or gray skin
• Rapid, shallow breathing
• Cold, clammy skin
• Fainting or near-fainting

Field hemorrhage management:

1. Lay the patient flat, legs elevated 12-18 inches (Trendelenburg position)
2. IV access and aggressive fluid resuscitation if skills and equipment available
3. Uterine massage: firmly massage the fundus (top of the uterus, felt through the abdominal wall) in a circular motion — this stimulates uterine contraction and can reduce hemorrhage
4. If oxytocin is available: 10 units IM can stimulate uterine contraction and reduce bleeding
5. Do not pack the vagina — this hides the bleeding rate without addressing the cause
6. Evacuate urgently. Postmiscarriage hemorrhage requiring shock management needs surgical intervention.

Misoprostol for Incomplete Miscarriage

Misoprostol (Cytotec) is a prostaglandin E1 analog that stimulates uterine contractions. It is used in medical settings to complete incomplete miscarriages and is on the WHO essential medicines list.

If available:

• Dose for incomplete miscarriage: 800mcg placed under the tongue (sublingual) or vaginally
• Works in 80-90% of cases within 24-48 hours, completing expulsion of retained tissue
• Expect significant cramping, heavy bleeding, and passage of tissue within 4-24 hours
• Pain management: ibuprofen 800mg every 6-8 hours for cramping during the process

Misoprostol is not without risk. It can cause prolonged heavy bleeding, allergic reactions, and is absolutely contraindicated in suspected ectopic pregnancy (see below). This information is provided for completeness in a true austere emergency. Surgical aspiration or curettage by trained providers remains the gold standard for incomplete miscarriage management.

Septic Miscarriage

Infection of retained pregnancy tissue. This is life-threatening.

Signs:

• Fever (≥ 38°C/100.4°F)
• Uterine tenderness (pain on abdominal palpation over the uterus)
• Purulent (foul-smelling) or brown-green vaginal discharge
• Rapid heart rate

Treatment:

• Antibiotics immediately: ampicillin + metronidazole if available (or amoxicillin + metronidazole as alternative). This treats the polymicrobial infection from uterine contamination.
• Evacuation urgently — removal of infected retained tissue is required
• IV antibiotics and surgical management are the standard of care; oral antibiotics are a bridge

Septic miscarriage untreated progresses to septic shock and multi-organ failure. Fatality rates exceed 20% even with treatment in resource-limited settings.

Ectopic Pregnancy: Distinguish from Miscarriage

An ectopic pregnancy implants outside the uterus, usually in a fallopian tube. It cannot survive and will rupture, causing life-threatening internal hemorrhage.

Distinguish from miscarriage:

• Ectopic: one-sided lower abdominal or pelvic pain, often before significant bleeding. The uterus is not enlarged proportional to gestational age. Vaginal bleeding may be absent or minimal.
• Cervical motion tenderness (pain when the cervix is gently moved) is characteristic.
• Shoulder tip pain (from blood irritating the diaphragm) is a sign of rupture with intraabdominal bleeding.
• A ruptured ectopic can cause rapid hemodynamic collapse — shock within minutes.

A woman with early pregnancy and significant one-sided pain (without heavy uterine bleeding) should be evacuated for ectopic evaluation until proven otherwise. This is a surgical emergency.

Emotional Support After Miscarriage

Pregnancy loss is grief. It is not a minor inconvenience. The physical recovery from a first-trimester miscarriage is typically complete within 2-4 weeks. The emotional recovery takes as long as it takes.

In an emergency setting:

• Acknowledge the loss directly — do not minimize it
• Provide physical comfort and privacy where possible
• Understand that the person may feel shock, denial, profound sadness, anger, or guilt — all are normal
• The partner or support person is also grieving and needs acknowledgment
• No one should return to physically demanding roles within 24-48 hours after a miscarriage regardless of how the experience is handled emotionally

Fertility after miscarriage: Most women can conceive again within 1-3 cycles after a first-trimester miscarriage. The vast majority of miscarriages are not caused by anything the mother did or could have prevented.