Hi. Thanks for your query, albeit short and specific. Noted the history and understood the concerns. Brown discharge from the abdominal wound after 8 days of surgery for sigmoid resection with pain all over abdomen and golf ball size lump indicate abdominal incision dehiscence. I would advise you he following: Rush to the ER or to the hospital where you were operated for proper clinical evaluation, examination and investigations of ultrasonography, X-ray of the abdomen in standing position and other relevant tests of blood and stool. You may need drainage of the abscess and strapping of the abdomen, a long wound care program. Multivitamins, antibiotics help early recover. Secondary suturing may be required if medical management fails. Do not take anything orally till you visit a Doctor.