Conversation: The conversation between human and AI assistant.
[|Human|] I do muay thai training and in this style of kickboxing you use your shin to strike. I was conditioning my shin (Hitting it and rubbing it with a stick, kicking the bag with my shin as most muay thai fighters do both amateur and professional) and after my training I noticed a painful HUGE bump/lump on my shin which I still have after 1.5 hours of noticing it. What could this be and how should I handle the situation?
[|AI|]  Hi! If I were your primary doctor for this case of a big lump on the shin, especially with recent hitting/kind of trauma in the region, I would like to consider a possibility of hematoma or collection of blood in a pseudocyst-like sac! It IS A COMMON THING AND NOT TO WORRY REALLY BUT, BETTER DO NOT RUB OR POKE IT AS THIS MIGHT TURN INTO A BOIL CAUSING LOT OF TROUBLE...! It needs some ice/cold compress and rest in the area but usually takes more than 12 hours for significant reduction in size! Also take care not to get them in the future. Hope I could answer your question; still if you are willing to ask more, I'm always here for you!wishing you early recovery!