What does it mean if you have a lump on your anus?

a problem begging to meet a doctor.

why are you even taking the time to type, drive immediately to medical attention.

either it's awful and you need surgery to save your life, or it's really bad gas.

are you worried or not?

medical questions should not be asked or answered online.

Answer: Of course, if it's internal it could just be feces that haven't come out yet.

If you're thin, you may be feeling your coccyx, or tailbone.