Is black hair normal?

If

the patient only has the phenomenon of glans blackening, there are no other symptoms of discomfort, sperm quality is good, and testicular, prostate and other parts of the normal function, this time generally belongs to the normal situation. Because with age, melanocytes will deposit in local tissues, resulting in glans blackening. If the patient also has abnormal symptoms such as local itching, redness, blisters, papules, pain, low sperm quality, and abnormal prostate, testis and other parts, this is usually not normal. May be related to orchitis, prostatitis and other conditions, because the appropriate inflammatory factors of the above diseases will stimulate local blood vessels, affect blood circulation, cause insufficient blood irrigation in some tissues, so the glans will be black.