Causes of Maternal Morbidity

Introduction to Maternal Morbidity and the Safe Motherhood Initiative

Maternal morbidity refers to any short- or long-term health condition attributed to or aggravated by pregnancy and childbirth, negatively impacting a woman's well-being. Unlike maternal mortality, which measures deaths, morbidity captures the burden of severe near-miss complications where women survive life-threatening episodes. The Safe Motherhood Initiative, launched globally in 1987 and domesticated across sub-Saharan Africa, aims to reduce these preventable complications through skilled attendance at birth, family planning, and accessible emergency obstetric care. In Nigeria, the high burden of maternal ill-health remains a public health priority, requiring nurses to understand both clinical and systemic drivers of poor outcomes.

Direct Obstetric Causes: Hemorrhage and Hypertensive Disorders

Direct obstetric causes stem directly from obstetric complications of pregnancy, labor, or the postpartum period.

• Postpartum Hemorrhage (PPH): Excessive bleeding following delivery, commonly caused by uterine atony, retained placental tissue, or genital tract trauma, leading rapidly to hypovolemic shock.
• Hypertensive Disorders: Conditions such as pre-eclampsia and eclampsia characterized by high blood pressure, proteinuria, and systemic end-organ damage, predisposing mothers to cerebral hemorrhage and multi-organ failure.

Direct Obstetric Causes: Sepsis and Obstructed Labor

Infections and mechanical labor complications account for a massive share of maternal morbidity in resource-constrained settings.

• Puerperal Sepsis: Bacterial invasion of the reproductive tract following childbirth or miscarriage, frequently promoted by prolonged rupture of membranes or unsterile vaginal examinations.
• Obstructed Labor: Failure of the fetus to descend through the birth canal due to cephalopelvic disproportion or malpresentation, which without timely intervention leads to uterine rupture, obstetric fistula, and severe localized necrosis.

Indirect Obstetric Causes: Pre-existing and Co-existing Medical Conditions

Indirect causes are medical conditions that existed before pregnancy or developed during gestation, which are not direct obstetric complications but are severely worsened by the physiological demands of pregnancy.

Socioeconomic and Cultural Determinants of Maternal Health in Nigeria

Beyond biological factors, social structures heavily influence maternal health outcomes across Nigeria. Poverty restricts access to nutritious foods, routine antenatal clinic visits, and prompt payment for emergency drugs. Educational barriers limit a woman's health literacy, reducing her ability to recognize danger signs during pregnancy. Cultural practices, such as reliance on traditional birth attendants for high-risk deliveries or patriarchal decision-making structures where husbands must approve healthcare expenditure, frequently trap women in dangerous delays before reaching formal medical facilities.

Health System Challenges and Delays in Seeking Care

The Three Delays model helps explain why Nigerian women suffer high rates of severe morbidity:

1. Delay in deciding to seek care: Stemming from ignorance, cultural beliefs, or low perceived severity of symptoms.
2. Delay in reaching care: Caused by poor road infrastructure, long distances to health facilities, and lack of functional emergency transport systems.
3. Delay in receiving care: Driven by health system failures, including staff shortages, stock-outs of essential medicines like oxytocin, erratic power supply, and poor referral protocols between primary and tertiary centers.

Assessment, Early Identification, and Nursing Interventions

Nurses play a frontline role in mitigating maternal morbidity through vigilant clinical assessment and prompt intervention. Routine antenatal screening must prioritize checking blood pressure, testing urine for protein, monitoring hemoglobin levels, and providing health education on danger signs such as vaginal bleeding, severe headaches, and reduced fetal movements. Intrapartum care requires active management of the third stage of labor and meticulous plotting of the partograph to catch prolonged labor early. Nurses must maintain low thresholds for activating emergency referral pathways when complications exceed primary care capabilities.