Autopsy Findings in Criminal Abortion

A. Scene and External Findings (Before Dissection)

1. Sudden death of a woman of childbearing age who was known or suspected to be pregnant
2. Deep cyanosis - particularly suggestive of air embolism
3. Disturbed underclothing
4. Fluid, soapy, or blood-stained discharge coming from the vagina
5. Abortifacient drugs or instruments found at the scene
6. Signs of pregnancy on external examination - linea nigra, striae gravidarum, breast enlargement, pigmentation of areola
7. Expression of fluid from the breast (in a primipara, this is indirect evidence of recent abortion)

B. Genital Tract Findings

• Lacerations, bruising, or contusions from instrumental interference
• Necrosis and erosion of vaginal mucosa from caustic substances (lysol, potassium permanganate, soap solutions)
• Foreign body (catheter, stick, packing material) may still be present
• Abnormal discharge - soapy, bloody, foul-smelling (septic)
• Tooth marks from volsellum forceps on the cervix (if D&C was performed)

• The cervical os may be dilated (in later gestations)
• Mucous plug may be displaced, fragmented, or absent
• Lacerations or tears at the cervical os
• Instrument marks visible on the cervical mucosa

• Enlarged - consistent with gestational age. At 3 months ~10 cm long; at 4 months ~12.5 cm
• Pale and anaemic if death was due to haemorrhage (vs. congested if due to menstruation - an important medico-legal distinction)
• Perforation of the uterine wall - may be small and require serial transverse sections of fixed uterus to locate; the tract can be tracked this way
• Scrape marks on the inner surface from curettage
• Remains of foetus, placenta, or membranes in the uterine cavity
• Absence of corpus luteum from the ovary raises doubt about recent pregnancy
• Corpus luteum - its presence confirms recent pregnancy
• Brownish discoloration of the serosal surface in clostridial (gas gangrene) infection
• A soft, boggy, or flabby uterus
• In cases of peritonitis, small perforations may be present and require meticulous search

Uterus perforated during criminal abortion; the foetus is lying in the abdomen, and the small intestine has been pulled out through the perforation (mistaken for products of conception) - Parikh's Textbook

C. Cause-of-Death Specific Autopsy Findings

1. Air Embolism

• Marked cyanosis externally
• On opening: distended right ventricle under pressure
• Bright red frothy blood in the right side of the heart, venae cavae, pulmonary arteries, and coronary veins
• When the heart or great vessels are punctured under water, bubbles of air come out
• Pre-autopsy: X-ray or CT may show air in the vasculature
• Precaution: The thoracic cavity should be filled with water before puncturing the right ventricle to demonstrate air embolism; artefactual air bubbles in brain/neck vessels from decomposition may cause confusion

2. Haemorrhage and Shock

• Anaemia of all organs - pale, exsanguinated pelvic organs
• Laceration of uterine vessels or perforated uterus with haemoperitoneum
• Note: Pale, anaemic pelvic organs = death from haemorrhage in criminal abortion; congested pelvic organs = death from menstruation (medico-legally important distinction)

3. Sepsis / Peritonitis

• General peritonitis with turbid peritoneal fluid
• Inflamed, friable bowel loops adherent to uterus
• Thrombophlebitis of pelvic veins
• Organisms: Clostridium welchii (perfringens), Clostridium tetani, haemolytic streptococci, anaerobic streptococci, E. coli
• Clostridium perfringens can cause fulminating septicaemia within 18-24 hours
• Brownish discoloration of uterine serosa in gas gangrene
• Pus in tubes, ovaries (pyosalpinx, tubo-ovarian abscess)

4. Air/Fat Embolism from Soap Solution Injection

• Widespread local necrosis at the injection site
• Massive intravascular haemolysis following injection of soap, potassium permanganate, lysol, or mercuric perchloride
• Renal failure with pale, swollen kidneys - cortical pallor from haemoglobin nephropathy
• DIC findings - widespread petechial haemorrhages
• Butterfly haemorrhagic infarction in the basal ganglia (a characteristic finding with hypertonic saline/glucose used after 12 weeks)

5. Drug Toxicity

• If abortifacient drugs were used, toxic effects are seen in respective organs:
  • Ergot: vascular spasm, gangrene
  • Quinine: hepatic necrosis
  • Lead salts: basophilic stippling of red cells, liver/kidney damage
  • Lysol/Phenol: brown coagulative necrosis of mucosae

D. Histological and Laboratory Examination

• Histological sections of all material from uterus, cervix, and vagina
• Corpus luteum of pregnancy in the ovary - confirms recent pregnancy
• Chorionic villi in uterine scrapings - confirms intrauterine pregnancy
• Trophoblastic tissue - confirms products of conception
• Dating of injury by microscopy or enzyme histochemistry (to establish timing)
• Blood and swabs from cervix/uterine cavity for bacteriological culture
• Toxicological analysis of vaginal/uterine specimens if poisonous substances suspected
• Amniotic fluid - may be analysed for soap, lysol, or saline used in the attempt

E. Special Autopsy Technique for the Pelvis

1. An incision is made just outside the labia majora, carried backwards to include the anus, and forwards to the symphysis pubis (which is divided)
2. The parietal peritoneum is cut around the brim of the pelvis
3. By careful dissection, the entire pelvic viscera (uterus, vagina, anus, rectum, bladder) is removed as a bloc and examined in detail

F. Things to Exclude / Medico-legal Notes

• Spontaneous abortion must be excluded - absence of mechanical injury, no foreign substances, corpus luteum cyst present with no manipulation signs
• Postmortem delivery from putrefactive gas pressure must be excluded
• If uterus is not enlarged and corpus luteum is absent, question the diagnosis of pregnancy
• The time elapsed between death and autopsy matters - decomposition can vitiate findings (especially air embolism)
• Artefactual air in neck/brain vessels can mimic ante-mortem air embolism - test must be done carefully under water

• P C Dikshit Textbook of Forensic Medicine and Toxicology - "Postmortem Evidence of Criminal Abortion," "Causes of Death in Criminal Abortion"
• Parikh's Textbook of Medical Jurisprudence, Forensic Medicine and Toxicology - Chapter 30, "Criminal Abortion," pp. 456-461

Postmortem Changes Found at 24 Hours After Death

1. Algor Mortis (Cooling of the Body)

• First 2 hours: Falls at approximately half the difference between body temperature and ambient temperature per hour
• Next 12-16 hours: Linear fall at 0.4-0.6°C per hour (in temperate climates)
• In tropical countries (India): Average fall is 0.5-0.7°C per hour; body reaches ambient temperature in 16-20 hours

• The body will have reached or is close to ambient temperature, especially in warm climates
• Rectal temperature will be near environmental temperature
• The body feels cold to the touch
• Note: If the deceased had sepsis (very relevant in criminal abortion deaths), the body temperature may have been elevated before death, so this must be factored into back-calculations

Time (hours) = (37.2°C − rectal temperature) ÷ 0.6°C per hour

• Obesity, heavy clothing, febrile state at time of death
• Hot ambient temperature

2. Livor Mortis / Postmortem Hypostasis

• Hypostasis is well-established and fixed (no longer fully shiftable)
• The stain is in the dependent parts - in supine position: back of neck, shoulders, back, posterior thighs, calves, and heels; sparing pressure points (scapulae, sacrum, heels)
• Pressure with a finger no longer completely blanches the stain - this indicates fixation has occurred (vessel walls becoming permeable, blood diffusing into tissues)
• "Incomplete shifting" is still possible at the 24-hour mark if the body is repositioned - new lividity may form at new dependent areas, but original lividity persists (two sets of lividity = body was moved after death)
• Vibices (pale bands/strips) may be visible where clothing, straps, or wrinkles prevented blood pooling
• Tardieu spots (petechiae within hypostatic areas) may appear, especially in prone positions or asphyxial deaths

• Distribution tells the pathologist the position of the body immediately after death
• If lividity is on anterior surfaces but body found supine, the body was moved after fixation occurred - this is a key medico-legal finding

3. Rigor Mortis

• Commences: 2-3 hours after death
• Develops head to foot: ~12 hours
• Fully established throughout body: 12 hours
• Persists at full intensity: Next 12 hours (i.e., up to 24 hours after death)
• Passes off: ~12 hours after peak (i.e., 24-36 hours)

1. Eyelids - 3-4 hours
2. Face - 4-5 hours
3. Neck and trunk - 5-7 hours
4. Upper extremities - 7-9 hours
5. Legs - 9-11 hours
6. Small muscles of fingers and toes - 11-12 hours
7. Passes off in same order as it appeared

• Rigor mortis is fully established throughout the body - jaw, neck, and all extremities are stiff
• Arms bent at elbows, legs bent at knees and hips
• The body can be "broken" by mechanical force at joints, after which that joint becomes and remains flaccid
• Rigor is at its maximum or just beginning to pass off
• If body was septic (in criminal abortion deaths), rigor may develop and pass off faster due to the acidic tissue environment accelerating muscle chemistry

4. Early Putrefactive Changes (Beginning at 24 hours)

• Greenish discoloration over the caecum, right iliac fossa, and flanks - due to formation of sulphmethaemoglobin (hydrogen sulphide from intestinal bacteria acts on haemolysed haemoglobin)
  • Appears 12-24 hours after death (as early as 6 hours in summer)
  • Spreads to abdomen, external genitalia, chest, neck, face, and limbs
  • May be patchy at 24 hours; confluent discoloration of the whole body takes a further ~24 hours
• Marbling (arborescent pattern): Greenish-blue lines following superficial veins (at neck, shoulders, groins) due to decomposing blood pigments staining vessel walls
  • Commences after ~24 hours; prominently visible at 36-48 hours
• Foul odour: Gas production (hydrogen sulphide, ammonia, methane, phosphorated hydrogen) begins with colour changes
  • Gas in intestines causing abdominal distension: 12-18 hours in summer
  • Abundant gas formation: 18-36 hours

• Advanced putrefaction (green discoloration + bloating) may be seen within 24-36 hours in summer
• The pathologist must account for ambient temperature when estimating time of death from putrefactive changes

5. Internal Organ Changes at 24 Hours

6. Forensic Significance at 24 Hours - Summary Table

7. Special Caveat: Criminal Abortion + 24-hour Delay

1. The septic uterus contains large numbers of Clostridium perfringens
2. These organisms produce gas (CO₂, hydrogen, nitrogen) within tissues pre-mortem and continue postmortem
3. The gravid uterus putrefies rapidly compared to the virgin uterus
4. "Foamy" or "honeycomb" appearance of the liver may appear within hours rather than 24-36 hours
5. The brownish discoloration of the uterine serosa from Clostridial infection may be indistinguishable from early postmortem change - the pathologist must interpret this in context

• The Essentials of Forensic Medicine and Toxicology, 36th edition (2026) - "Livor Mortis," "Algor Mortis," "Putrefaction," Organ-specific changes, pp. 159-174
• Parikh's Textbook of Medical Jurisprudence, Forensic Medicine and Toxicology - "Rigor Mortis," "Colour Changes," "Gases of Putrefaction"
• P C Dikshit Textbook of Forensic Medicine and Toxicology - "Criminal Abortion," time-of-death estimation