What diseases were there in the trench in World War 1? Trenche foot was very common in the trench warfare. caused from wet feet and not being able to change their socks and boots. Edit
Repels Sharks No.........human urine actually repells sharks and other fish.
For men, the presence of semen in the urine can make the urine foamy. This happens normally after sexual contact with the partner wherein small semen particles get discharged through urethra in the urine. It is common for diabetic patients to have foamy urine due to high protein content.