White spots on the nail cover may be related to ringworm of the nail, congenital white nail disease, trauma and other reasons. 1. Ringworm of the nails: it is mainly caused by dermatophyte infection, and the common causative bacteria include Trichophyton suis, Trichophyton rubrum, Candida, and so on. The nail plate of the patient may appear thickening, separation, shedding and other symptoms, and the nail color is white, yellow and so on, which may lead to white spots on the nail cover of some patients. 2. Congenital leukonychia: the cause may be related to heredity, incomplete nail keratinization, metabolic disorders and other factors, and the patient’s nails will appear opaque white spots. 3. Trauma: If the nails are struck or squeezed by external forces, the nails may be traumatized, which may lead to white spots on the nail cover. There are more reasons for white spots on the nail cover, so it is recommended to go to regular hospitals for examination and clarification of the cause of the disease.