These lump or skin tag can be either piles or anal fissure. In both conditions you feel soft lump near anal opening. When your digestive system is working properly these lumps donot cause any problem, they just stay there but when you get constipated, passing hard stool can cause them to swell and you get blood in stools. You may also experience some discomfort or itching for some hours after passing stools.
Next Steps
Avoid getting constipated, add fibres to your diet, drink plenty of fluids, avoid spices and fried food, get some physical exercise everyday.
Health Tips
You can also try Homoeopathic treatment as it gives good results in these conditions with just medicines without any side effects.