White particles at the root of shed hair may be caused by seborrheic alopecia, tubular hair, fungal infections, head lice and other diseases. 1. seborrheic alopecia: caused by seborrheic alopecia resulting in increased secretion of androgens, hair follicles are the target of androgens, increased secretion of androgens leads to the release of excessive sebum secretion into the hair follicles, thus leading to white particles at the roots of the shed hair. 2. Tubular Hair: It is a manifestation of hair abnormality. The white granules at the roots of tubular hairs are mostly due to translucent deposits that can move freely in the hair shaft, and there is usually no other abnormality in this disease. 3. Fungal infections: Mostly due to infection of the superficial cuticle of the skin as well as the hair follicles caused by Malassezia infection, white granules may be present at the roots of the fallen hair, which are mostly shed dandruff. 4. Head lice: If there are more white particles at the root of the hair, then the possibility of eggs cannot be excluded, and the larger cases are the eggs of head lice. Head lice are a kind of parasites that can be easily infected by human beings, and their eggs are usually concentrated at the roots of the hair and are shaped like white particles. If your hair shows the above symptoms, it is recommended to go to a professional hospital to identify the cause of the disease and then under the guidance of the doctor to carry out the next examination and treatment.