There is a hard lump beside anus very painful how be to return a responsibility

Anal hard masses mostly sudden, the most common is perianal abscess, thrombotic external hemorrhoids, sebaceous cyst secondary infection.

1, perianal abscess performance local pain, pressing pain is obvious, generally 1-2 days will become pus, the appearance of skin redness, swelling, if with a syringe, you can extract pus.

2, thrombotic external hemorrhoids, performance is also anal hard masses, smooth edges, tenderness, in the subcutaneous can see purple blood clots.

3, perianal sebaceous cyst secondary infection early will also appear perianal hard masses, gradually suppuration soft, or burst pus.