Perspective

Hearing loss is increasingly recognised as a major global health issue, with large effects on communication, education, employability and social participation. The World Health Organisation (WHO) notes that by 2050, nearly 2.5 billion people may have some degree of hearing loss, with more than 700 million requiring rehabilitation, and that unaddressed hearing loss carries an annual global cost of almost US$1 trillion [1, 2]. In response, the WHO  has promoted integrated people-centred ear and hearing care that spans prevention, early identification, treatment of ear disease, rehabilitation and long-term support [3].

Nigeria is a useful case study for health audiences because it reflects a common pattern across low- and middle-income countries: large population need, uneven specialist distribution, constrained public financing and fragile continuity from diagnosis to rehabilitation. Nigeria is experiencing a rising prevalence of hearing loss, with current estimates suggesting that approximately 23.7% of the population is affected [4]. Access to specialist services is particularly limited in rural areas, and the cost of treatment and rehabilitation, including speech and language therapy, often prevents families from seeking care. This synthesises available literature to describe Nigeria’s audiology landscape and draw system-level lessons relevant to scaling ear and hearing care.

The health system problem: Effective coverage, not just availability
In many settings, “availability” (a facility that can perform audiometry or a screening programme) is mistaken for effective coverage (people receiving timely, high-quality services that improve outcomes). Nigeria illustrates why this distinction matters. Workforce constraints and service concentration limit access, while weak referral systems and affordability barriers reduce the proportion of people who successfully transition from identification to rehabilitation.

Although precise national workforce counts are inconsistently reported across sources, the direction of evidence is consistent: specialist scarcity is severe. An African-focused analysis drawing on regional workforce data reported low densities of ear, nose and throat (ENT) specialists (0.076 per 100,000 people) and audiologists (0.007 per 100,000) [5]. For context, the WHO World Report on Hearing recommends a minimum of 1 ENT specialist per 100,000 population and at least 1 audiologist per 100,000 population for adequate hearing care coverage [1, 2].  At present, 78% have less than 1 ENT specialist per million, and 93% have less than 1 audiologist per million in low-and middle-income countries [1,5]. The United Kingdom, which has the poorest ENT specialist-to-population ratio in Europe, maintains 1.0 ENT specialist per 100,000 population – more than thirteen times Nigeria’s density [5]. Nigeria’s current workforce therefore represents approximately 7.6% of the minimum ENT target and 0.7% of the audiologist target.

Regarding health facility coverage, audiology services are not available in Nigeria’s primary healthcare facilities, are rarely available in secondary facilities, and those available in tertiary teaching hospitals are concentrated in major urban centres (Lagos, Ibadan, Kano, Enugu and Abuja) [5]. The National Ear Care Centre in Kaduna remains one of the few dedicated public audiology facilities. Comparative data indicate that 16 countries in sub-Saharan Africa have no audiologists at all, placing Nigeria in a slightly better but still critically underserved position [5].

This shortage has been exacerbated by the “japa syndrome” (brain drain), whereby younger specialists leave Nigeria for better opportunities abroad. While specific audiology brain drain rates are not systematically tracked, national data indicate that approximately 50% of Nigerian medical graduates leave the country within fifteen years post-qualification [6]. The United Kingdom, United States, Canada and Australia are the primary destination countries [7]. This exodus has reduced the already insufficient specialist workforce and disrupted succession planning for academic training programmes. The policy implication is not only “train more audiologists” but also redesign service delivery so that prevention and triage are decentralised while specialist capacity is strategically expanded.

Early-life detection: Feasibility demonstrated, follow-up remains the weak link
Nigeria has produced influential evidence showing that early-life hearing screening is feasible in local conditions. In Lagos, hospital-based universal newborn hearing screening achieved high coverage (98.7%) and a workable referral rate, but most infants did not complete the next step: only 16% of those scheduled for diagnostic audiological evaluation to confirm or rule out hearing loss returned, meaning 84% were lost to follow-up and failed to present for diagnostic evaluation, limiting the programme’s effectiveness despite successful screening operations [8].

A complementary model tested infant hearing screening at routine immunisation clinics, screening over 2000 infants. This community platform was feasible and could detect permanent childhood hearing loss early, but again highlighted the necessity of efficient tracking and follow-up systems to improve return rates for second-stage screening and diagnostic evaluation [9]. These studies, taken together, demonstrate a central implementation lesson: screening is the easy part; continuity is the hard part.

Why is follow-up difficult? Evidence suggests that demand-side and service-side factors both matter. A systematic review of parental perceptions of newborn hearing screening in Nigeria reported that most included studies found negative parental perceptions, influenced by demographic, psychological, cultural, behavioural and service-related factors [10]. Demographic factors include lower parental education levels, rural residence and lower socioeconomic status, with mothers having primary education or less, being 2-3 times less likely to return for diagnostic appointments [10]. Psychological factors encompass parental anxiety about hearing loss diagnosis, denial and fear of stigma; some parents interpret a “refer” result as a temporary issue that would resolve spontaneously. Cultural factors include traditional beliefs attributing hearing loss to spiritual causes or curses, which influence care-seeking behaviour; in some communities, hearing impairment is viewed as a family shame, discouraging open discussion and professional consultation [10]. Behavioural factors involve competing priorities (work, childcare for other children), forgetfulness and low perceived severity of hearing loss in infancy, with many parents not understanding that early intervention is time-sensitive. Service-related factors include long waiting times, inadequate counselling at the point of screening, lack of appointment reminders, distant diagnostic centres and unclear referral instructions; poor communication between screening and diagnostic services creates additional confusion [10]. This aligns with a wider global health insight that trust, counselling quality, service experience, transport costs and opportunity costs shape uptake of preventive services even when they are offered.

For Nigeria, strengthening early-life detection therefore requires shifting from “programme pilots” to system design: unique identifiers, appointment reminders, referral coordination, accessible diagnostic sites, family-centred counselling and guaranteed pathways into rehabilitation and early intervention.

Integration into primary healthcare and task-sharing
Given workforce constraints, decentralising basic ear and hearing care into primary healthcare is a pragmatic strategy. Nigerian evidence supports training frontline workers as part of this approach. A before-and-after study of 190 primary healthcare workers found that a two-day WHO-adapted ear and hearing care training programme significantly improved knowledge of ear disease recognition, risk factors for hearing loss, and referral criteria – with risk factor identification scores rising from 54.3% to 72.7% – leading to recommended inclusion of primary ear care as a component of primary healthcare [11].

This is consistent with the WHO’s integrated people-centred framework, which emphasises coordinated services across levels of care, supported by a capable workforce and enabling systems [3]. Task-sharing should be viewed as a system-enabling response to scarcity, not a permanent substitute for specialist services. The goal is to improve early identification of ear disease, reduce preventable complications, standardise referral thresholds and avoid late presentation, while audiologists and otolaryngology services provide diagnostic confirmation, rehabilitation planning and complex care.

Rehabilitation and hearing technologies: The missing middle
Even when hearing loss is identified, many people in low- and middle-income settings do not access sustained rehabilitation. The WHO highlights both the large unmet need and the feasibility of scaling ear and hearing care with modest additional per-person investment, implying that financing and system prioritisation are central barriers, not technical impossibility [1, 3].

In Nigeria, the rehabilitation pathway is frequently constrained by out-of-pocket payment, limited device access, variable fitting and verification capacity and weak aftercare. These barriers contribute to abandonment or inconsistent use of hearing aids and reduce trust in services. From a universal health coverage perspective, rehabilitation should not be treated as an optional add-on after diagnosis. It is the intervention that converts detection into real-world functional gains.

A practical systems target is therefore to define a minimum package of ear and hearing care services that includes rehabilitation, embed it within national benefit packages and ensure affordability of devices, batteries or charging solutions, repairs and follow-up.

Health system building blocks beyond service delivery and workforce
While service delivery and workforce dominate the audiology landscape in Nigeria, other health system building blocks require attention if integrated people-centred ear and hearing care is to be achieved.

1. Information systems: Nigeria’s District Health Information System (DHIS2) does not currently include hearing loss as a reportable condition, and no national ear and hearing care registry exists [5]. This data gap means that policy decisions are made without reliable epidemiological or service coverage data. Digital health solutions offer potential remedies. Smartphone-based screening tools, such as those developed by the hearX Group in South Africa, have demonstrated feasibility for community-level hearing screening and data collection in low-resource settings [12]. Tele-audiology initiatives in Nigeria remain limited to pilot projects without national scale-up, despite growing internet connectivity that could support remote diagnostic support and follow-up.
2. Supply chain management: Nigeria has no local hearing aid manufacturing capacity, creating dependence on imported devices. Hearing aid batteries, essential for sustained device use, are often unavailable in rural areas and represent a recurrent cost that many families cannot afford. There is virtually no infrastructure for device maintenance, repair or reprogramming outside major urban centres, contributing to high abandonment rates. The WHO estimates that less than 10% of hearing aid needs are met in sub-Saharan Africa, primarily due to supply chain failures rather than clinical incapacity [1].
3. Partnerships for health: International partnerships have provided valuable but fragmented support. Hearing Help for Africa, in collaboration with the Jos University Teaching Hospital, has provided cochlear implants and temporal bone laboratory training [13]. The MTN Foundation has conducted hearing aid donation programmes [14]. However, these initiatives are not substitutes for sustainable public financing; they often create parallel systems that fragment care, lack integration with public referral pathways, and depend on external funding continuity.
4. Community engagement: Civil society organisations, including the Nigeria National Association of the Deaf, the Suleiman Hearing and Education Foundation and Save the Deaf and Endangered Languages Initiative, play important advocacy and awareness-raising roles [15]. Community health workers, if trained in basic ear care, could serve as bridges between communities and formal services. However, sign language recognition remains incomplete – while Nigerian Sign Language is recognised, Hausa, Yoruba and Igbo Sign Languages lack official status, limiting community participation in service design and delivery for deaf communities [15].

Policy intent and implementation capacity
Nigeria has articulated national commitment to ear and hearing care through national policy and planning, including a federal launch of a National Policy and Strategic Plan on Ear and Hearing Care described as a blueprint for prevention, early detection, intervention and rehabilitation [16]. Policy direction also aligns with the WHO’s integrated approach [3]. The challenge, as with many health priorities, is converting policy intent into delivery at scale through financing, workforce planning, procurement, monitoring and accountability. A comparison between policy intent and ground reality reveals substantial gaps across these domains. In financing, the policy calls for dedicated budgetary allocation for ear and hearing care at federal and state levels, yet as of 2025, no state has established a specific ear and hearing care budget line; services remain dependent on general health allocations, which are often diverted to infectious disease priorities, and out-of-pocket payment remains dominant, with hearing aids costing USD500-2,000—beyond the means of most Nigerian families [16]. In workforce planning, the policy envisages training programmes to produce 50 audiologists annually by 2025, yet only two Nigerian universities offer audiology training, producing approximately 10-15 graduates per year; there is no national workforce retention strategy and the policy’s call for bonded service in underserved areas has not been implemented. In procurement, the policy recommends inclusion of hearing aids and assistive devices in the national essential medicines list and bulk procurement mechanisms, yet hearing aids are not on the essential medicines list, import duties on hearing devices remain at 5-10%, and no national procurement framework exists; most devices are imported individually by private clinics or donated through charitable missions [14, 15]. In monitoring, the policy mandates the establishment of a national ear and hearing care registry and integration of hearing indicators into the District Health Information System (DHIS2), yet hearing loss is not a reportable condition in DHIS2, no national registry exists and screening coverage data are available only from isolated research studies rather than routine health information systems [16]. In accountability, the policy specifies the establishment of a National Ear and Hearing Care Committee with quarterly reporting to the Federal Ministry of Health; this committee was constituted in 2018 but has met irregularly, with no published annual reports or public accountability mechanisms. Implementation should be assessed against measurable indicators: screening coverage with documented follow-up completion; age at diagnosis; time to rehabilitation; geographical access to diagnostics and fitting; and equity metrics across rural versus urban populations.

Lessons from Nigeria for scaling ear and hearing care in low- and middle-income countries
Nigeria’s experience offers four lessons applicable beyond its borders. Comparative experience from other African countries illustrates what is possible with targeted investment. South Africa, with 0.417 ENT specialists and approximately 1 audiologist per 100,000 population (the highest density in sub-Saharan Africa), has integrated hearing screening into school health programmes and established a cochlear implant programme with public funding [5]. Rwanda, despite limited specialist numbers (0.064 ENT specialists per 100,000 population), has successfully integrated ear care training into its community health worker programme and established a national health insurance scheme that covers basic hearing services [5]. These examples demonstrate that progress is achievable even with constrained resources when ear and hearing care is explicitly prioritised in national health planning, financed through dedicated mechanisms and supported by functional referral networks.

Taken together, the Nigerian experience and lessons from comparable African settings highlight several important considerations for strengthening ear and hearing care systems. First, feasibility evidence is necessary but insufficient. Pilot screening programmes do not translate into impact without end-to-end service pathways that include tracking, diagnostic confirmation and rehabilitation [8, 9]. Second, workforce scarcity requires system redesign. Primary care integration and task-sharing can improve access and timeliness, but only if referral networks are functional and specialist services are reachable [11]. Third, rehabilitation is the bottleneck for effective coverage. Health systems that fund screening but not hearing aids, fitting, counselling and repairs will not achieve meaningful outcomes, despite activity at the front end. Fourth, implementation capacity is the main constraint. Integrated people-centred strategies require financing, governance and data systems, not just equipment purchases [1, 3].