Anal squeeze not pus but hard lumps may be caused by trauma, chronic eczema, hemorrhoids, anal fistula and so on. 1. Trauma: due to trauma, resulting in bacterial infection formed abscess, mainly manifested as redness, swelling, pain, etc., the surface of the hard nodules or hard lumps phenomenon. 2. Chronic eczema: if there is infection, blood circulation disorders, endocrine and metabolic disorders, mental factors, food stimulation and other factors, resulting in the anus squeeze out pus but there are hard lumps of the situation, accompanied by itching. 3. Hemorrhoids: If long-term alcohol consumption, food stimulation, perianal infections, poor defecation habits, etc., will cause the appearance of hemorrhoids, resulting in the anus does not squeeze out the pus but there is a hard lump of the situation, and accompanied by blood in the stool, anal pain and other symptoms. 4. anal fistula: most anal fistula is caused by rectal perianal abscess, resulting in the patient’s anus can not squeeze out the pus but hard lumps, accompanied by perianal pain, perianal itching and other symptoms. It is recommended that patients go to the hospital in a timely manner, in the doctor’s clear diagnosis, according to the patient’s specific condition, to take targeted treatment.