Complex sentence: Anejaculation, especially in "orgasmic" variant, is usually indistinguishable from retrograde ejaculation, however, with a negative urinalysis measuring no abnormal presence of spermatozoa in the urine will eliminate a retrograde ejaculation diagnosis.
Split into simpler sentences: Anejaculation, especially the "orgasmic" variant, is usually indistinguishable from retrograde ejaculation. However, a negative urinalysis measuring no abnormal presence of spermatozoa in the urine will eliminate a retrograde ejaculation diagnosis.