Primary Nocturnal Enuresis: This is the most common cause of bedwetting in children around this age. It is often due to a combination of factors including delayed bladder maturation, deep sleep patterns, and inadequate antidiuretic hormone (ADH) secretion at night.

Constipation: Chronic constipation can cause urinary incontinence and nocturnal enuresis due to the pressure it puts on the bladder.
Urinary Tract Infections (UTIs): UTIs can cause discomfort and lead to bedwetting, especially if the infection involves the bladder.
Neurogenic Bladder: Although less common, neurogenic bladder due to spinal cord issues or other neurological problems can lead to incontinence.

Diabetes Mellitus: Uncontrolled diabetes can lead to polyuria (excessive urine production), resulting in nocturnal enuresis. Missing this diagnosis could lead to serious complications.
Spinal Cord Anomalies: Conditions like spina bifida can cause neurogenic bladder, leading to incontinence. Early detection is crucial for management and preventing further complications.
Sleep Disorders: Certain sleep disorders, such as sleep apnea, can increase the risk of nocturnal enuresis by affecting the normal sleep cycle and possibly increasing urine production.

Nocturnal Seizures: Rarely, nocturnal seizures can cause bedwetting. The seizure activity can lead to loss of bladder control.
Psychological Issues: Emotional or psychological stress can sometimes manifest as bedwetting in children, though this is less common and usually accompanied by other behavioral changes.
Urological Anomalies: Certain congenital anomalies of the urinary tract can lead to incontinence, though these are typically identified earlier in life.