General uses
131I is a radioisotope frequently used in nuclear medicine to diagnose and treat thyroid cancers, and other thyroid diseases. Medical diagnosis and treatment, nuclear energy, natural gas production, industrial radioactive tracers.
Advantages
It can destroy harmful cancerous thyroid tissue after the removal of the thyroid and it can be eliminated from the body.
Risks
It accumulates in the thyroid, exposing the thyroid to radiation and increasing the risk of cancer or other diseases.