White powder on toenails can be considered to be related to the occurrence of diseases such as nail fungal disease or psoriasis nail involvement.
1. Nail fungal disease: it is mainly caused by dermatophyte infection, such as Trichophyton rubrum, Trichophyton mustelii, etc. It is mostly directly infected by tinea pedis, and when the fungus violates the nails, it can result in the unevenness of the nail plate, thickening, or grayish-yellowish turbidity, and the surface of the nail bed can remain rough keratinized accumulation.
2. Psoriasis: its occurrence can be related to genetic, immune and environmental factors, etc. It can cause erythema, papules and scaling of the skin, and when it involves the nails, it causes nail damage, which manifests itself as a thimble-like depression, and the nails can be turbid and thickened, and produce nail debris.
When there is white powder on the toenail, it is recommended to consult a doctor in time, after a clear diagnosis, follow the doctor’s instructions for treatment.