Medicines that can cause hair loss include blood thinners (also called anticoagulants), medicines used for gout, medicines
used in chemotherapy to treat cancer, vitamin A (if too much is taken), birth control pills
Certain infections can cause hair loss. Fungal infections of the scalp can cause hair loss in children. The infection is easily treated with antifungal medicines.
Finally, hair loss may occur as part of an underlying disease, such as lupus or diabetes.