A Hospital Management System (HMS) is a comprehensive software solution designed to streamline and automate the day-to-day operations of a hospital or healthcare facility. It typically includes a wide range of modules and features that help healthcare professionals manage patient information, appointments, medical records, billing, inventory, pharmacy management, and more.

Some of the key features and functionalities of a Hospital Management System may include:

1. Patient Management: This module allows healthcare professionals to create and maintain patient records, including their medical history, demographic information, diagnostic reports, and treatment plans.

2. Appointment Scheduling: The HMS may have a scheduling module that allows patients to schedule appointments online, and doctors and other healthcare professionals to view and manage their schedules.

3. Electronic Medical Records: The HMS may store electronic medical records (EMRs) of patients, which contain all relevant medical information, including diagnoses, treatments, and prescriptions.

4. Billing and Insurance Management: The HMS may automate billing and insurance management, including generating invoices, tracking payments, and managing insurance claims.

5. Inventory Management: The HMS may have a module for managing inventory, including medical supplies, equipment, and drugs.

6. Pharmacy Management: The HMS may have a module for managing pharmacy operations, including drug dispensing, inventory tracking, and prescription management.

7. Reporting and Analytics: The HMS may generate various reports and analytics, such as patient demographics, revenue, and operational performance.

Overall, a Hospital Management System can help healthcare facilities improve patient care, reduce administrative overhead, and increase operational efficiency.