It corresponds, in fact, to a narrowing of the foreskin of such a high degree that it completely prevents it from sliding backwards, even in the situation of a flaccid penis.
Serrate phimosis can be congenital or acquired. Congenital tight phimosis is a condition with unknown causes, which can also resolve spontaneously with growth; acquired tight phimosis, on the other hand, is a condition with very specific causes (including balanitis, balanoposthitis and lichen sclerosus), which always needs proper treatment.
Diagnosed quickly by physical examination, tight phimosis causes several symptoms and signs, including: difficulty urinating and passing sperm, thin urine stream, swelling of the foreskin when urinating, pain in the glans penis during sexual intercourse and loss of pus from the urethral orifice (only, however, if the condition is the result of an "infection).
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