Bones can be partially digested by human stomach acid.
Usually a small piece of bone swallowed into the stomach can be basically digested by the gastric juice, because the gastric juice contains gastric acid with a low pH value, which is acidic, and the composition of the bone is mainly calcium carbonate, so it can be digested by the gastric acid. However, if the bone is large, it may not be digested completely when swallowed into the stomach, and may also cause damage to the gastric mucosa, resulting in symptoms such as stomach pain, nausea, vomiting, and abdominal pain.
Human stomach acid has many functions, such as the ability to activate pepsin, but also to provide the required acidic environment, play a role in digestion; and then the stomach acid into the duodenum can promote the secretion of pancreatic fluid, bile, intestinal fluids, and pancreatic secretin, cholecystokinin secretion; at the same time, it can also help the small intestine on the absorption of calcium and iron.
If you accidentally eat bones and experience stomach pain, nausea and other symptoms mentioned above, it is recommended that you go to the hospital as soon as possible and take appropriate measures under the guidance of your doctor.