What does 97 percent sperm mean?

97% of sperm abnormalities are considered to be abnormal sperm morphology in semen samples.

Abnormal sperm morphology may include head deformity, tail loss or deformation, etc., and 97% of sperm abnormalities are considered to be high abnormality rate, which may cause sperm to fail to pass through the cervix and enter the egg effectively, thus reducing the chance of conception.