Under normal circumstances, after the birth of a baby, the nightmare should be clean in twenty days. If the nightmare is still red after forty days, this is a sign of abnormal performance. It may be due to poor contraction of the uterus or inflammatory infection in the uterine cavity, residual substances in the uterine cavity, residual fetal fat and fetal membranes, which may show red colored malodex; or during normal delivery, the cervical opening was lacerated by the fetus, which may also cause the endometrium to have broken capillaries and not fully recovered from this phenomenon. It is necessary to have an ultrasound examination in time to determine the condition and then take symptomatic treatment to control the phenomenon of red malaria. During this period, you should also pay attention to rest, do not overwork, pay attention to hygiene, pay attention to cleaning.