Girls, hi! Such a question immediately after childbirth started lochia…

Girls, hi! Such a question immediately after childbirth started lochia, they were like brownish and now yesterday night for the fifth day began to flow blood straight. Is it normal? I don't understand, is it from the suture there, or from the internal bleeding, I went to the obstetrician, she says smear the suture just, can you tell me maybe you had this too? Thanks