weed question

The time marijuana takes to leave the body can vary from person to person. It really depends on:
The amount of marijuana used
How the marijuana is consumed and how often it is used
The rate the user's body processes the marijuana
The concentration of THC in the marijuana plant

So to answer your question it is possible for marijuana to be detectable in your body for 30 days or maybe even longer, but this is more likely to occur in individuals who use marijuana on multiple occasions. It has been reported that marijuana is detectable after one time use about 2 weeks post use; however this can vary based on the above factors.

Given you only tried marijuana once 4 months ago, it is likely the compound detected in the urine drug screen is out of your system, or too low to detect. Also, you are not likely to suffer any long term effects after single use. However, here are some interesting facts for you to consider. Studies have shown marijuana to be associated with respiratory, memory, and psychiatric illnesses. It has been stated that, "Smoking one joint is equal to smoking five cigarettes — smoking four joints is like smoking an entire pack". This is due to the fact that marijuana smokers tend to take longer, deeper inhalations and hold smoke in their lungs for longer. This leads to three to five times more tar and carbon monoxide in their bodies. Also, marijuana is usually smoked unfiltered (in joints, blunts, bongs, and pipes) and burns at a higher temperature, which is more damaging to the lungs. As basketball player, I believe this alone is enough reason to refrain from smoking marijuana again, and I applaud you for making that decision. Good luck with your season. I hope this is helpful, and thanks for your post.

Dr. Mathews