Here's a little bit about Martha Christy's experience.  You can read it all in her book "Your Own Perfect Medicine."

http://www.health-science-spirit.com/urine.html

Martha Christy's Experience

Martha Christy cured herself of a host of incapacitating illnesses, including intestinal inflammation or Crohn's disease, chronic fatigue syndrome, thyroid disorder, severe chronic kidney infections, food and chemical allergies and severe endometriosis.

The conventional approach with drugs and six operations did not help and probably intensified her problems. Natural therapies worked for a while, but a difficult pregnancy disabled her again and this time even the natural therapy she tried was not good enough, including $US 15,000 spent in an alternative cancer clinic in Mexico for bleeding pelvic tumours.

Most of the time she had to stay in bed until one day she was introduced to urine therapy and before long, all her health troubles were over.

Instead of just writing another 'How I Did It' book, she went to university libraries and hired a research firm to search the scientific and medical literature for publications on the use of urine and products derived from it.

She was amazed by what she found. There were not just hundreds but rather thousands of published articles. There are probably more articles published about urea, the main ingredient of urine, than about any other organic substance. Mrs Christy devoted a large part of her book to explaining and summarising this scientific and medical evidence and also provided detailed references of published papers.

In addition, she lists many testimonials of individuals as to the effectiveness of urine therapy in overcoming AIDS, Candida, Cancer, Colitis, Depression, Diabetes, Immune deficiency, Multiple Sclerosis and other diseases.