From the Research
Causes of Neonatal Straining during Micturition
The causes of neonatal straining during micturition can be attributed to various factors, including:
- Obstructive conditions, such as posterior urethral valves, which can cause lower urinary tract obstruction in male infants 1
- Asphyxiated bladder syndrome, which may occur in newborns subjected to severe perinatal stress, leading to delayed micturition and bladder distension 2
- Neurogenic bladder dysfunction, which can affect the development of bladder control in children 3
- Disturbed or delayed development of lower urinary tract function, which can lead to dysfunctional states in the lower urinary tract later in life 4
Obstructive Conditions
Obstructive conditions, such as posterior urethral valves, can cause significant straining during micturition in neonates. This condition is characterized by the presence of abnormal tissue folds in the urethra, which can obstruct the flow of urine 1.
Asphyxiated Bladder Syndrome
Asphyxiated bladder syndrome is a condition that may occur in newborns subjected to severe perinatal stress, leading to delayed micturition and bladder distension. This condition is thought to be caused by a decrease in urine formation or reduction of urine flow, despite the absence of gross anatomic abnormalities 2.
Neurogenic Bladder Dysfunction
Neurogenic bladder dysfunction can affect the development of bladder control in children, leading to straining during micturition. This condition is characterized by a lack of coordination between the detrusor and sphincter muscles, which can lead to urinary incontinence and other voiding dysfunctions 3.
Developmental Factors
Developmental factors, such as disturbed or delayed development of lower urinary tract function, can also contribute to straining during micturition in neonates. This can lead to dysfunctional states in the lower urinary tract later in life, emphasizing the importance of early diagnosis and treatment 4.