Raw beef may have parasites.
Raw beef may contain beef tapeworm, a parasite that can live in the body and cause abdominal discomfort and indigestion.
The eggs of beef tapeworm usually hatch in the intestines of cattle and spread throughout the body with blood circulation, growing into cysticerci. Once a person consumes beef containing cysticerci, or food contaminated with cysticerci, they will develop into adult worms in the small intestine.
It is generally not recommended to eat raw beef, and it is safer to cook it. Raw beef is not sterilized at high temperatures and bacteria can easily grow and multiply in raw meat and blood. Some raw beef also contains tapeworms. Eating meat containing parasites can seriously jeopardize human health.
If you feel unwell after eating raw beef, it is recommended that you seek medical attention to avoid delaying treatment.