Hi I have a soft lump near my tailbone which grows & vanishes every few days. It has been more than a month that I feel wet in my bums around evenings and have to wipe the pus/fluid which is yellowish in colour The leakage sometimes happens at night as well but not regularly Sometimes the lump enlarges and then almost vanishes. It is squishy and releases a minute amount of blood when touched. I'm looking to use surgery as a last resort. Can someone help please?