Healthcare apps face unique testing challenges across 8 structural dimensions that set them apart from every other app category. These include regulatory compliance visible on every screen (prescriptions, lab reports, consent flows), extreme patient data sensitivity with legal consequences for leaks, real-time multi-step clinical workflows (teleconsult to prescription to pharmacy), complex insurance integration with combinatorial plan configurations, multi-stakeholder coordination across patient/doctor/pharmacy/lab/insurance apps, offline requirements as a patient safety necessity, accessibility mandates for elderly and impaired users, and the emotional sensitivity of health data presentation. Each dimension demands specific QA strategies: per-screen regulatory validation, synthetic data pipelines, cross-app end-to-end testing, and visual validation of clinical information context — not just element existence checks.