My mother's age is 55. Before 5 years she operated cervical polyp but it occurs again before 6 months and it was also operated. But in recent days she told that sudden but very little quantity of blood is coming out from vagina. The colour of the blood was brownly red. But the blood of today is purely red. The  blood is  occurred between a gap of 1 day. The previous day she bleed but yesterday did not bleed but today she again bleed. Before 2 days she told she has a pain of leg and waist but today there is no pain. So doctor help me . Why this problem occurs? And tell me the remedy. Please