一種大腸及直腸發炎的慢性疾病。⁴⁶

46. NHS. Ulcerative Colitis. Available at: https://www.nhs.uk/conditions/ulcerative-colitis/. Last accessed September 2021.

指靜脈腫脹和擴張，通常發生於腿部或足部。從外觀上，靜脈有可能呈藍色或深紫色，且有時候會凸出、膨脹或扭曲。⁴⁷

47. NHS. Varicose veins. Available at: https://www.nhs.uk/conditions/varicose-veins/. Last accessed September 2021.

血管的一種，負責將無氧或含氧量低的血液輸送至心臟。⁴⁸

48. Encyclopaedia Britannica. Vein. Available at: https://www.britannica.com/science/vein-blood-vessel. Last accessed September 2021.

指血栓在靜脈形成，最常見於腿部或盤骨的深層靜脈。此情況稱為深層靜脈栓塞（DVT, deep vein thrombosis）。血液亦有可能會脫落並隨血液流到肺部。此情況稱為肺栓塞（PE, pulmonary embolism）。靜脈血栓栓塞一詞涵蓋深層靜脈栓塞和肺栓塞。⁴⁹

49. NICE. Venous thromboembolic diseases: diagnosis, management and thrombophilia testing. March 2020. Available at: https://www.nice.org.uk/guidance/ng158. Last accessed September 2021.

一種抗凝血藥，通常稱為「薄血藥」，有助保持靜脈血液流動暢通，減低血栓形成的機會。⁵⁰

50. NHS. Warfarin. April 2019. Available at: https://dictionary.cambridge.org/dictionary/english/pace. Last accessed September 2021.