### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
Hi. Recently while showering (after sitting on the pot) I noticed that there was a lump inside my buttocks, very close to where the anal opening is. It is quite hard and initially only hurt when I apply some pressure on it, but now while not very painful is noticeable throughout. I can also feel some bony or veiny structures around it. I dont think its anal or colorectal cancer as Im only 22, with no direct family history of cancer and show none of the symptoms, but Im worried that it might be skin cancer or something else thats serious. I dont smoke or drink (but admittedly do have a lot of chocolate and fizzy drinks, and not much fruit except fruit juices) and I dont have beef regularly. There are no signs of bleeding and my bowel movements dont seem to be much different. I have no idea how long its been there, but I only noticed it yesterday. Is this something that will go away or is it necessary to see a doctor (Im currently job-seeking and am not insured). Please advise. Thanks

### output:

Thanks for your question on Chat Doctor. I can understand your concern. Possibility of skin cancer is less likely in your case. Common symptoms of skin cancer are chronic skin ulcers, not improving with Chat Doctor.  These ulcers are usually painless and mostly on the sun exposed parts of the body like face, neck, hands, foot etc. So no need to worry about your gluteal swelling, it is not cancer. Possibility of gluteal abscess is more in your case. So better to consult doctor and get done clinical examination and ultrasound examination. You may need surgical removal of this swelling. Also check for diabetes as diabetics are common to develop gluteal abscess. Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.