As I mentioned in a previous post, pilonidal cyst are lumps that usually form just to the side of the top crease in the buttocks and can be as small as a pea or large than a golf ball. It's an abscess that is created from an infected follicle. Usually, it hurts when you press on it and if it becomes infected the pain will be worse. Pilonidal cyst can take one of several courses. Some people with pilonidal cyst will experience excruciating pain in the tailbone area and will have obvious signs of inflamed lump(redness, swelling, pain) Other people will have abscess that's draining and don't cause sever pain. The third group of people are the ones that can feel the lump, but cause very little pain.
Do you feel itchy in that area and perianal area too? You could have minimal drainage with no odor and you can feel itchy caused from the drainage.
Do you have family history of pilonidal cyst? Are you experiencing lower back pain? Did you suffer traumatic injury to the tailbone? Do you have tendency towards forming acne, boils or cysts?
Best wishes!
Marija