The normal semen color may be colorless, white or yellowish. If you have not ejaculated for a long time, the semen color may be a bit yellowish. The color of semen is mainly related to the frequency of ejaculation and the volume of ejaculation, showing a negative correlation. If intercourse is frequent and ejaculation is more frequent in the near future, it is easy to cause the volume of semen to be less and the color of semen tends to be colorless, if intercourse is less and ejaculation is less frequent, the color of semen tends to be white or yellowish. In addition, if the daily stimulation of tobacco and alcohol is relatively high, the color of semen may also tend to be yellow. Therefore, a lighter daily diet, attention to regular work and rest, avoiding the stimulation of tobacco and alcohol, and eating more seafood and supplementing zinc appropriately can promote the quality of semen and the color of semen may change a bit. If the semen is bright red, light red, dark red or soy sauce colored and also contains a large number of red blood cells the situation is called hematosperm, which may be due to inflammation of the prostate, tuberculosis of the reproductive system, tumors or stones. If the semen appears yellow or brownish-purulent for a long time, it is mostly seen in prostatitis and vesiculitis. In conclusion, there are many factors that affect the color of semen. If you have regular sex and regular semen discharge, but still show yellow color for a long time, it is recommended to seek medical examination in time.