Medical ESTA for USA refers to the use of the Electronic System for Travel Authorization for travelers visiting the United States for short-term medical purposes. Under the Visa Waiver Program, eligible travelers can enter the U.S. for consultations, treatments, or medical check-ups for up to 90 days without a traditional visa. Applicants must have a valid e-passport and obtain ESTA approval before travel. While ESTA allows entry, it does not replace medical visas for long-term or complex treatments. Medical ESTA is suitable for urgent or minor healthcare needs, ensuring quick travel authorization and smooth entry for approved international patients.