Initially you should try natural remedy. Blood in stiok or brown spotting shows some lesion somewhere along Gastrointestinal Tract colon etc. If home remedies with natural Ayurveda doesn t cure, only then all tests/ surgeries/ toxic drugs should be thought of. It is good to be careful towards diet. Take non spicy , light diet. To my own patients with such conditions, I would recommend Ayurveda herbals, safe and economic and no side effects. Tarunikusumakar kusumakar powder for 3 days to clean guts. Then Avipattikar chooran + Prawal pishti + Kapardika bhasm + Naagkeshar herb powder + Sootshekhar Ras in the ratio of 2gm+250 mg+250 mg+ 1gm + 250 mg mixed in honey twice a day to be licked for a week to two weeks. Hingwastak chooran 2 gm during meals twice a day. If you have not cured , may take for a week more. Drakshasav + Kumaryasav liquid 1:1 ratio plus equal water should ideally be taken for four weeks thereafter. May seek the help of Ayurveda doctor too if you find it difficult to follow. Very safe classical Ayurveda med- pioneer for digestive disorders. Hope it helps you on your own.