Yes, all forms of cannabis negatively impact sperm quality. The effect is variable, but in most cases ranges from a moderate to a severe effect. Cannabis comes from the marijuana plant, and the products that can cause sperm problems include smoking weed, taking gummies or other edibles, as well as any other types of vapes, tinctures, and oils.  It’s not just the THC (the main psychedelic ingredient in cannabis) that can impact sperm, but also many types of CBD products that come from cannabis are also toxic to the testicles.  Because cannabis and marijuana take root in the body’s fat cells, their effects tend to last several weeks beyond their use. Regular users typically need 6 months for it to both clear out of the system, and also to allow for a new batch of sperm to come off the assembly line which is around 3 months.