If you tear the urethra slightly, will it heal? what are the possible complications if not treated?

See physician: Urethral trauma affects 2 different parts of urethra. Trauma to anterior urethra result of straddle-like injuries with injury from sharp blow, where urethra located near skin (straddling bicycle seat or bar or a fence)poss. Urethral stricture, scarring blocking flow of urine from the penistrauma to posterior urethra almost always pelvic fxs auto accident.Severe injuries can lead to urinary block.

Natural Healing: The good news is that area has fantastic blood supply and so healing will occur rapidly. Inflammation (red, hot, tender swelling) is the body increasing the blood flow to the injury to bring healing factors to the area and also the veins expand to carry bad stuff away. Dressings and ointments are of no value there. Avoid further trauma to the area and let nature take it's course.