Differences in the Tongue Features of Primary Dysmenorrhea Patients and Controls over a Normal Menstrual Cycle

<div>Illustrations show (a) an original tongue image, (b) segmented tongue region, (c) extracted tongue substance, and (d) extracted tongue coating from the tongue region to be acquired with the CTIS. A trained operator acquired the tongue image according to SOPs.</div>

Evidence-Based Complementary and Alternative Medicine

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Figure 3

Figure 3: Differences in the Tongue Features of Primary Dysmenorrhea Patients and Controls over a Normal Menstrual Cycle 