Taking folic acid does not usually cause headaches. Folic acid belongs to the category of Western medicines, and the drug type is anti-anemia. Folic acid is yellow or orange in color, can be used for the treatment of folic acid deficiency and folic acid deficiency caused by megaloblastic anemia, hypertension, etc. It can also be used as a preventive drug given to pregnant and lactating women, and the folic acid deficiency that occurs in patients with chronic hemolytic anemia can also be treated by folic acid. If you need to treat the disease through folic acid, you need to combine the specific disease under the guidance of a professional doctor to use the drug, not to use the drug privately, so as to avoid improper control of the dosage. Folic acid adverse reactions are relatively few, some patients may have allergic reactions. If you take folic acid for a long time may lead to nausea, bloating and other symptoms. If large doses of folic acid are taken, it may lead to yellow urine. However, clinical and related studies have not found that patients will have headaches after taking folic acid, and folic acid generally does not cause headaches.