Why Uremic patients not have sex?

Uremia is it? Urine inside is literally no toxins, the most simple clinical patients can be seen, the patient's urine, the smell is very light, the color is very pale, serious enough to see urination no color, no odor, which is the kidneys can not be excluded toxins, water, not metabolism of the body out of toxins from the body due to accumulation of toxins, the body's internal biochemical process disorder resulting from a complex syndrome.
Renal, endocrine function, juxtaglomerular cells may secrete renin, renin, intrahepatic synthesis of angiotensinogen into angiotensin I, the latter in the lungs angiotensin converting enzyme generated angiotensin II vasoconstriction with a strong blood pressure and stimulate aldosterone secretion. Device can generate juxtaglomerular erythropoietin factor, the factor of the role of EPO in the heyday of the liver, red blood cells, making the conversion, but also regulate water and electrolyte acid-base balance, is the human body in a relatively stable internal environment, and ensure normal the victory of activities.
In patients with uremia toxins from the body is too high, and will be accompanied by varying degrees of water and electrolyte acid-base balance disorder, cause 1) the hypothalamic - pituitary - gonadal dysfunction: in uremic patients because urinary toxins affect the endocrine system, caused by the abnormal;
(2) organic: about 90% of patients with autonomic nervous system or penile vascular occlusion, about 56% of patients had severe sexual dysfunction, and another 20-30% of patients have mild or moderate sexual dysfunction; these organic damage may be caused because of uremia or the reasons for the original cause of chronic renal failure;
(3) uremia itself;
(4) uremic complications: such as the excitement of parathyroid function, anemia, cardiovascular disease, stroke, infection, malnutrition and other problems;
(5), fatigue, psychosocial factors, depression and other problems