| Benign prostatic hyperplasia (BPH) is one kind of usual and complicated disease caused by many reasons in the aged. And this disease can influence many old men's qualities of life. In the 21st century, with the extending of people's life expectancy, the number of people who get the BPH is on the increase. BPH can result in bladder neck obstruction, which can affect the normal functions of the urinary system, and brings about many urinating symptoms. At last, BPH can lead to the pathological changes of bladder and kidney and the damages of renal functions. Some people's BPH can even change to the uremia, and affects their qualities of life, critically. So, at present, it is the object of every doctor who has learned something about urology to study and research BPH, and to find the most effective, reasonable and little anguished curing scheme. BPH is belonged to the category of traditional Chinese medicine's "difficulty in urination". The position of BPH is at the jingshi and the bladder, and, there is a close relation between the BPH and the kidney. The origin of BPH is the deficiency of the old man's kidney. And the outcome of BPH is the stagnancy of the aqueducts. So, the pathogenesis of BPH is vacuity in origin and excess in superficiality. The basic causes of BPH are the old age and the functional testes. The pathogeneses of BPH why BPH can result in obstacle of urinating are caused by the urethra oppressed by the increasing prostate which can lead to prostatic portion of urethra (static factor), and, tension factor which is caused by increasing muscle tonus of urethra smooth (dynamic factor), and, the disfunction of detrusor urinae of bladder, and etc. The symptom group of BPH includes bladder outflow obstruction, and detrusor instability, and detrusor underactivity. In all these three symptom groups, the degree of detrusor underactivity can make a direct impact on the clinical diagnosis, treatment choosing, curative effect evaluating. So, we can distinguish symptoms of detrusor underactivity from BPH symptom group, and make a quantificational classification, through urodynamic study examination, then, we can find that it is important to treat those patients, whose therapeutic efficacy by modern medicine are below the mark, by TCM, on the basis of classification. At present, TCM has already formed its own theory, and has accumulated abundant experience. And, people have focused attention upon TCM, because of its credibly curative effect and low or no toxin. It has great foreground to energetically search more and more precious TCM heritage, and excogitate some Chinese patent medicine, which has high pertinence, reliably curative effect, and low side-effect.1. The clinical investigationLately, there are many research about BPH, but everyone has his/her own aside, and, until recently, there can not find any unitive comprehension about characteristics of clinical TCM syndromes of BPH and its law of the differentiation of symptoms and signs. So, I studied 152 BPH patients in order to probe into the characteristics of clinical TCM syndromes and the law of the differentiation of symptoms and signs, and, at the same time, I studied other factors that can influence BPH. After analyze 152 patients who have got the hyperplasis of prostate relation of TCM symptoms, the result of brightness mode ultrasonic examination, and the result of Urodynamic study, we can find there are mainly three kinds of TCM symptoms. The first kind of TCM symptoms is the kidney yang vacuity, and there are 71 patients who got this kind of TCM symptoms. And, the degree of the proliferations of the prostates of this kind of patients is often Ⅱ° (46.5%), and the average volume of the prostate of this kind of patients is 36.8 cm3, and the average residual urine volume (RUV) of this kind of patients is below 100ml, and, in all these 71 patients, there are 58 patients whose degree of bladder outflow obstruction (BOO) are Ⅲ~Ⅳ°. The second kind of TCM symptoms is the stagnancy of the aqueducts, and there are 40 patients who got this kin...
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