Thanks for writing in to Healthcare Magic!
The excessive vaginal discharge
after delivery is secreted from the raw surcafe of placenta attachment, which is brown in first week and is termed as lochia
Later in second week it becomes serous white so lochia alba.
still later the secretions become normal.
This phenomenon is essentially a normal occurrence and should not cause worry.
If you have any further query please let me know I would try to answer it for you.
Wish you a great health!