<s>[INST] Hi! I just had an MRI of the neck and brain and was told that I have an arachnoid cyst and would like to know if its ok to take 81mg aspirin on a daily basis even though I have the cyst. I always hear about hemorraging either with the stomach or even the brain with some of the risks. Thank you for your time. [/INST] Hi, I am Chat Doctor.  I have read your question and understand your concerns. Let me try to help you Question: Suggest treatment for arachnoid cyst in brainpower : Treatment depends on few factors 1. Location of the cysts 2. Size of the cyst 3. Whether it is growing (to be determined by another Scan after 6 months) 4. Whether it is compressing any vital structures In Most cases, we don't need any treatment as the cyst won't be compressing any vital structures Hope you found the answer helpful. If you need any clarification / have doubts / have additional questions / have follow-up questions, then please do not hesitate in asking again. I will be happy to answer your questions. Let me know if I can assist you further. Take care. </s>