What’s the best way for a four year old to keep wetting the bed?

Four-year-old children always wet the bed may be caused by physiological factors, pathological factors such as: acute urinary tract infection disease, neurogenic bladder and other factors. The etiology is different and the treatment is different. Including drug treatment, surgical treatment, behavioral intervention treatment and so on.
1. Physiological factors: four-year-old children may still exist in the phenomenon of bedwetting, there is no other abnormalities, you can temporarily observe the follow-up treatment, usually can be appropriate to let the baby relax, avoid drinking or eating before bedtime. Some babies may gradually return to normal before the age of five.
2. Acute urinary tract infection: for example, acute cystitis, can cause urge incontinence, there will be bedwetting, may also be accompanied by urinary urgency, urinary frequency, after diagnosis, due to its gram-negative bacterial infections, can be prescribed by the application of sensitive antimicrobial drugs, such as cefeprime and so on.
3. Neurogenic bladder: For neurogenic bladder, drugs such as tolterodine can be applied for treatment, in addition, intermittent catheterization can be given to improve the phenomenon of urinary leakage, and in severe cases, surgical treatment should be considered.
All treatment options should be carried out under the guidance of a professional physician, and should not be used without authorization, so as not to delay the condition.