<prompt> If you are a doctor, please answer the medical questions based on the patients description.i have just recieved the results of my fertility test, it appears i have slightly low sperm forward progression 40, with 25 being rapid, what concerns me more though, is the density of morphologically normal and motile sperm, it reads 4. ive read that below 15 can cause problems with conception, how much of a problem is this?  <response>: Hi welcome to Chat Doctor. I have gone through your question. Sperms should have at least 30 of normal morphology, below this cause problem in conception. And motility less than 40-50 is matter of concern. I would advise doing ultrasound color Doppler to rule you varicocele, to see testes vascularity. Then consult a urologist. Hope I answered your question. Would be happy to help you further. Take care. 