<s>[INST] we had a seman test done and it came back abnormal stating two headed sperm and wierd tales. also that the count was only 33% were normal of the 42 million. what does this mean? he does smoke marijuania. is this the reason? [/INST] Hello. Thanks for writing to us. Abnormal shapes of sperms is most commonly seen due to genetic or chromosomal defect. Marijuana smoking might be one of the factors in decreased motility of sperms. You need to take zinc, l-carnitine, vitamin E supplements to improve quality of sperms. I hope this information has been both informative and helpful for you. Regards, Dr. Rakhi Tayal drtayalrakhi@gmail.com </s>