Almost 200 years.
What the Chinese call Western medicine today, its full name is "modern and contemporary Western systems of medicine".
It originated in the western countries in the modern period, and it is a brand-new medical system developed by the scholars in the western countries in the modern period with anatomy and physiology, tissue embryology, biochemistry and molecular biology as the basic disciplines after they denied and abandoned the ancient Greek medicine;
The diagnostic technology in the medical system of the western countries in the modern period is more with the help of the advanced medical instrumentation and laboratory to make accurate diagnosis of the diseases. laboratory to make an accurate diagnosis of the disease. Doctors use their own sensory organs to diagnose a patient's disease through visual diagnosis, palpation, percussion, auscultation, olfaction and other methods, or with the help of a stethoscope, percussion hammer, sphygmomanometer, thermometer, and other simple tools to carry out a comprehensive and systematic examination of the patient.
Because it originated in Western countries in the modern period, we are accustomed to call it Western medicine. Modern Western medicine was known as New Medicine in China during the modern period, as opposed to Old Medicine (Chinese medicine). And the middle of the 19th century, this is the historical moment when the stage of modern history of the world basically came, nearly 200 years ago.
Expanded Information:
The period of introduction into China:
The period of introduction to China:In the late Ming and early Qing dynasties, the missionaries who came to China brought Christianity to China as well as modern western science and medicine. As the main transmitter at that time was only superficial anatomical and physiological knowledge, and Western medicine was not superior to Chinese medicine in clinical treatment techniques, it had little impact.
Western medicine began to have an impact on Chinese medicine in the early 19th century, with the introduction of cowpox inoculation and Western surgical and ophthalmologic techniques. With the expansion of Western medicine, the achievements of modern Western medicine were introduced into China one after another, thus laying the foundation for the development of Western medicine in China.
The Opium War changed the original historical process and social nature of China. After the Opium War, church hospitals moved from the coast into the entire interior of the country, and within a few decades church hospitals abounded everywhere, becoming as striking a symbol of the church as the church.
Baidu Encyclopedia - Western Medicine
Baidu Encyclopedia - Modern Times