Vomiting acid water in women is considered to be caused by pregnancy, indigestion, gastritis and so on. 1. Pregnancy: After pregnancy, the hormone levels in the body change, which will affect the gastrointestinal tract, leading to vomiting and acid reflux. 2. Indigestion: most of them are caused by improper diet, such as eating greasy food or eating too much spicy and stimulating food, which will cause some stimulation to the gastric mucosa, leading to excessive secretion of gastric acid, which will lead to the phenomenon of vomiting acid water. 3. Gastritis: due to inflammation stimulation, resulting in gastric mucosal damage, gastric acid secretion increases, sometimes vomiting acid water, vomiting, stomach pain and other symptoms. Women vomiting acid water if it is caused by pregnancy, do not need special treatment, if it is caused by disease, need to cooperate with the doctor to take treatment.