According to the new definition of critical illness insurance in People's Republic of China (PRC), Bank of China and China Insurance Regulatory Commission 202 1, it is necessary to meet the requirement that the muscle strength of one or more limbs is below Grade 2 (inclusive).

The muscle strength of limbs is grade 2 more serious than grade 3. The limb muscle strength is divided into five grades from 0-5, which is normal muscle strength, and 0 is atony and flaccid paralysis, so the degree of muscle strength paralysis in grade 2 is more serious than that in grade 3.