<s>[INST] I am a 25 year old male. I have good erections anytime I need. Not a problem. But I am not able to ejaculate the semen. I always have some uneasiness in the left testicle. I guess it is the semen build up. The only time I could ejaculate semen is during Wet Dreams/Nocturnal Emission. Will this affect the chances of becoming a father. By the way, I am not married. I have not had sex. Is there a serious problem. [/INST] HelloConsistency and volume of seven depends upon number of factors like How frequently you ejaculate?Nutritional statussecretions of prostate and seminal vesiclesHygiene In my opinion you need not to worry,this is not a serious problemIf it gets even thinner or lumpy than it could be urethral discharge You should consult your doctor for seven analysis or urine culture to rule out the possibility of UTIHave plenty of fluids maintain good hygieneMultivitamin and food supplements to boost your heath and vitalityHope you will find my response informative and helpful please feel free to ask for follow up questions, I will gladly answer you Best wishes </s>