What are the main causes of vitamin K deficiency?

Generally, the main causes of vitamin K deficiency may include insufficient dietary intake, poor intestinal absorption, inadequate synthesis in newborns, long-term use of antibiotics, and liver or biliary diseases affecting synthesis. It is recommended to seek timely medical consultation, identify the underlying cause, and undergo symptomatic treatment under a physician's guidance. Detailed analysis is as follows:

1. Insufficient dietary intake: Prolonged picky eating or selective eating habits, such as eating fewer or no vitamin K-rich foods like spinach and broccoli, may lead to insufficient body reserves and potentially cause weakened blood clotting function. Adjust the diet structure by increasing intake of dark green vegetables and consuming animal liver in moderation weekly. If necessary, take vitamin K1 tablets orally as directed by a physician.

2. Poor intestinal absorption: Chronic diarrhea, intestinal tuberculosis, and other conditions causing intestinal mucosal damage can hinder vitamin K absorption, possibly accompanied by bloating and weight loss. Treat the underlying condition actively. Diarrhea patients can take medications such as montmorillonite powder, Bifidobacterium triple viable capsules, and compound digestive enzyme capsules as directed by a physician to improve intestinal function, while also supplementing with vitamin K preparations.

3. Inadequate synthesis in newborns: Newborns have not yet established intestinal flora and cannot synthesize vitamin K independently. Additionally, the vitamin K content in breast milk is low, making deficiency more likely, which may be accompanied by bleeding tendencies. After birth, newborns should receive vitamin K1 injections as directed by a physician for prevention. Mothers who are breastfeeding should consume more foods rich in vitamin K.

4. Long-term antibiotic use: Long-term administration of broad-spectrum antibiotics may suppress normal intestinal flora, reducing vitamin K synthesis, potentially accompanied by oral mucosal ulcers. Use antibiotics appropriately under medical guidance to avoid long-term misuse. If necessary, supplement with medications such as vitamin K2 soft capsules, vitamin K4 tablets, and compound vitamin B tablets.

5. Liver or biliary diseases affecting synthesis: Conditions such as hepatitis and biliary obstruction leading to insufficient bile secretion can impair vitamin K absorption and synthesis, potentially accompanied by jaundice and abdominal pain. Patients should treat the underlying disease as directed by their physician. Hepatitis patients may use medications such as compound glycyrrhizin tablets, silybin capsules, and ursodeoxycholic acid capsules to improve liver function, while also receiving vitamin K1 injections. For severe biliary obstruction, biliary drainage surgery may be required to restore bile excretion function.

In daily life, develop balanced eating habits without being picky or selective about food. Patients with chronic diseases should regularly monitor coagulation function to detect vitamin K deficiency promptly. During antibiotic treatment, proactively inform physicians about dietary habits and, if necessary, take preventive vitamin K supplements to maintain normal blood clotting function.