Rapid heartbeat, numbness of limbs: there are many reasons for nerve regulation: 1, urethral and seasonal factors: frequent urination, but not much urine every time, no painful expression and no other symptoms when urinating. First of all, local factors should be considered, such as inflammation of urethral orifice, too long foreskin, or pinworm stimulation of vulva. In addition, seasonal factors, winter polyuria is a normal phenomenon. 2, dietary polyuria: If you urinate frequently, urinate more every time, but there is no other performance, first of all, you should pay attention to whether you drink too much water, especially children who like sugar water. 3. Nervous frequent micturition: Children's detrusor is poorly developed, and their nerves are not perfect. During the day, there may be dripping polyuria, which can reach 20 ~ 30 times, but at night, micturition is normal, with a recurrence trend, and the urine test is normal. This disease is not caused by inflammation. 4. Urinary tract inflammation; Such as frequent micturition, urgency, dysuria or fever, urinary tract infection, such as cystitis and pyelonephritis. Should be considered, urine test. Microscopically, pus cells or a large number of white blood cells can be seen, and in severe cases, symptoms of systemic infection and poisoning can occur. 5, special diseases: such as frequent urination with excessive urine volume, as well as thirst, excessive drinking, weight loss, you should pay attention to urine, if there is sugar in urine, you should consider diabetes, if there is no sugar in urine and the proportion is low, you should think of diabetes insipidus. 6. Menopausal frequent urination: Frequent urination is a common symptom of postmenopausal women, sometimes caused by psychological factors. If the frequency of urination is serious to a certain extent, it will become "urgency". Patients must go to the toilet as soon as they feel urinating, otherwise it will be too late. Urine will automatically flow out and become urinary incontinence. 7. Kidney transplant patients are prone to frequent micturition symptoms: According to Reuters Health News new york News, according to the latest research results of Dutch researchers, kidney transplant patients often have frequent micturition symptoms after operation.