5 doctors weighed in:

Does smoking marijuana make men less fertile?

5 doctors weighed in
Dr. Jesse Mills
Urology
2 doctors agree

In brief: Yes

Frequent pot smoking leads to pituitary gland dysfunction and is directly toxic to the testicles.
Having said that, many 30-40 year olds would not be alive today if this was universal! no safe level of pot smoking has been established to preserve fertility. Best bet is to quit smoking anything while trying to conceive.

In brief: Yes

Frequent pot smoking leads to pituitary gland dysfunction and is directly toxic to the testicles.
Having said that, many 30-40 year olds would not be alive today if this was universal! no safe level of pot smoking has been established to preserve fertility. Best bet is to quit smoking anything while trying to conceive.
Dr. Jesse Mills
Dr. Jesse Mills
Thank
Dr. Robert Kwok
Pediatrics
1 doctor agrees

In brief: Maybe, maybe not

Some studies have shown decreases in the amount of semen, abnormal swimming in sperm, lower testosterone levels, and higher estrogen levels in marijuana users.
The studies are not big, so more research is needed. Smoking (inhaling smoke, which is full of lung irritants and cancer-causing chemicals) of any kind is unhealthy, but it is unknown if mj users actually have fewer children than non-users.

In brief: Maybe, maybe not

Some studies have shown decreases in the amount of semen, abnormal swimming in sperm, lower testosterone levels, and higher estrogen levels in marijuana users.
The studies are not big, so more research is needed. Smoking (inhaling smoke, which is full of lung irritants and cancer-causing chemicals) of any kind is unhealthy, but it is unknown if mj users actually have fewer children than non-users.
Dr. Robert Kwok
Dr. Robert Kwok
Thank
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