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Semen is typically translucent with white, grey or even yellowish tint. Blood in the semen can cause a pink or reddish colour, known as hematospermia , and may indicate a medical problem which should be evaluated by a doctor if the symptom persists.
A routine semen analysis should include: physical characteristics of semen (color, odor, pH, viscosity and liquefaction), volume, concentration, morphology and sperm motility and progression. To provide a correct result it is necessary to perform at least two, preferably three, separate seminal analyses with an interval between them of seven ...
Penile discharge is fluid that comes from the urethra at the end of the penis that is not urine, pre-ejaculate or semen. [2] [3] Common causes include infections due to gonorrhea, chlamydia, or trichomoniasis. [3] In gonorrhea the discharge may be white, yellow, or green. [4] [5] A swab of the discharge is usually performed. [5] Treatment ...
Infection or inflammation is considered the most common cause of the condition. Implicated pathogens include; Gram-negative bacteria (often E. coli), gonococci, T. pallidum, C. trachomatis, N. gonorrhoeae, echinococcus (rarely), HSV type 1 or 2, and HPV.
Pre-ejaculate on the glans of the penis. Pre-ejaculate (also known as pre-ejaculatory fluid, pre-seminal fluid or Cowper's fluid, and colloquially as pre-cum) is a clear, colorless, viscous fluid that is emitted from the urethra of the penis during sexual arousal and in general during sexual activity.
Semen displacement is an adaptation of the shape of the penis to draw foreign semen away from the cervix. This means that in the event of a rival male's sperm occupying the reproductive tract of a female, the human penis is able to displace the rival sperm, replacing it with his own.
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The slide is placed under a compound light microscope for sperm observation. If sperm are present, the heads will stain red and the mid-piece and tail stain green. [8] However, not all males release sperm in their semen. If a male is aspermic or oligospermic, they either have no sperm or a low sperm count. [10]