Hair loss in March after childbirth is serious, it may be physiological, or it may be caused by seborrheic dermatitis, fungal infections and other pathological factors, you can take general care and medication and other methods to solve the problem. 1. Physiological hair loss: hair will normally fall out during the resting period. Hair loss is intermittent or persistent, and is generally characterized by temporary thinning of hair. Hair can be completely regenerated within 6-12 months, that is, it is a normal phenomenon for normal people to shed up to 100 strands per day, and no special treatment is needed. 2. Seborrheic dermatitis: a lot of hair loss often occurs, more than 100 per day, and accompanied by oil, dandruff, scalp itching. You can use selenium disulfide shampoo to wash your hair, and strengthen the scalp clean. 3. Fungal infections: Postpartum immunity is reduced, easily combined with fungal infections, hair loss. Accompanied by scalp scaly hyperplasia, can be itchy. Topical ketoconazole lotion can be treated. If you have a serious hair loss in the third month after giving birth, there may be other reasons, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment. All of the above medications should be used under the guidance of a doctor.