<s>[INST] hello, im 14, im about 5´3, and i weight 110lbs, i never had this problem, i have a small lump in my anus, i think is what is called perianal haematoma, but im not sure, it hurts, but i dont know if it is something else, like hemorrhoid, i had this for about 3 days already, i haven´t told my mom yet, if it´s perianal haematoma, i know it will heal by it´s own, please tell me what it is and what should i do. [/INST] Hi, dearI have gone through your question. I can understand your concern.  It may be hemorrhoid (piles ) or some other lesion.  You should go for examination.  Take plenty of water and high fiber diet. Avoid constipation. Consult your doctor and go for examination. Then you should take treatment accordingly. Hope I have answered your question, if you have doubt then I will be happy to answer. Thanks for using health care magic. Wish you a very good health. </s>