One enlarged testes the size of a small orange !

Scrotal Anatomy: This is an urgent problem and needs in person evaluation at your earliest convenience.

Here are some ...: Very likely you may have so-called hydrocele. Nonetheless, bring the info on the onset, degree, duration, evolution, and progress of scrotal swelling and its potentially related symptoms over time to the Doc for analysis + physical exam + tests as needed such as US so to deduce possible Dx for reasonable Rx / care / counseling.