Vitamin k is also known as a clotting vitamin, and as the name suggests, its main function is to allow the blood to provide clotting function, and also has an important impact on bone production and development. Once deficient in vitamin k may lead to bleeding and clotting disorders, especially in cases of internal trauma where clotting will be more difficult. It may also cause osteoporosis and fracture easily, especially for the elderly. Vitamin k can be divided into fat-soluble and water-soluble, and fat-soluble vitamin k needs bile to assist in its production. For patients with gallbladder disease, or people who usually do not eat or rarely eat pork liver, eggs and other vegetables containing vitamin k, they are more likely to suffer from vitamin k deficiency. In the early stages of the disease, wounds do not heal easily, and bleeding does not clot easily, accompanied by stomach pain and back pain, and even neuropathic pain, in the middle of the disease process this pain will not only worsen, and clotting disorders will become more and more serious, even very small wounds are difficult to heal, bleeding. At this time, if internal bleeding occurs, it can even be life-threatening, with ulcers resulting from stress reactions in the upper gastrointestinal tract. Vitamin k deficiency, which can cause great harm to the patient’s trauma, can be supplemented directly by intramuscular injections or by taking drops to supplement vitamin k.