This clinical trial demonstrates high effectiveness of Thermobalancing therapy and Dr Allen's Devices. It shows their powerful treatment effect on the reduction of the enlarged prostate volume, on the reduction of disturbing lower urinary tract symptoms (LUTS), and on the dramatic improvement of the quality of life of men with Benign Prostatic Hyperplasia (BPH). The treatment with Dr Allen's Device is absolutely safe. In most cases, Dr Allen's Device can be the first-line treatment for BPH, without the need for long-term courses of medications and surgical procedures. This medical study is registered at the World Health Organisation (WHO), German Clinical Trials Register.