An important part of any breeding soundness exam is an evaluation of sperm morphology. In the most fundamental case, the size and shape of the head, midpiece and tail are examined. Additional information can be gained by evaluating integrity of the acrosome and sperm membranes. Sperm from different species vary in size and shape. Bull and human sperm, for example, have paddle-shaped heads, rodent sperm have hook-shaped heads, and the heads of chicken sperm are spindle-shaped and almost difficult to distinguish from the midpiece. The images shown below of rat, bull and chicken sperm are all at the same magnification.
Brown Semen – Causes & What does that Mean
Blood in semen (haematospermia) - NHS
Semen is normally a whitish-gray color. Changes in semen color might be temporary and harmless or a sign of an underlying condition that requires further evaluation. Possible causes, by color, include:. If semen discoloration is a new sign and it continues for more than a week talk to your doctor or see a urologist. Erik P. Castle, M. Mayo Clinic does not endorse companies or products.
Blood in semen (haematospermia)
Back to Health A to Z. It's unusual to find blood in your semen when you ejaculate, but try not to worry. It's usually only temporary and the cause is rarely anything serious. This page is intended to give you a better idea of the possible causes, but you should always see a GP for a diagnosis.