27 male. does frequent sexual arousal and pre ejaculatory fluid cause psa levels to increase or cause prostate enlargement or cancer?

Frequent sexual arousal and pre-ejaculatory fluid do not directly cause an increase in prostate-specific antigen (PSA) levels, prostate enlargement, or prostate cancer. However, it is important to understand the relationship between these factors and their potential impact on prostate health. Currently there is no direct causal relationship between sexual activity and Prostate cancer.

No - they do not.