What causes the black discoloration of the little toe nail?
May 05, 2023
Source: Cainiu Health
Dr. Liu Wan
Introduction
The little toe nail generally refers to the nail of the smallest toe. If the nail suffers trauma, causing local capillary rupture and blood stagnation, it may lead to black discoloration of the nail. Blackening of the little toe nail could also be caused by conditions such as malnutrition, onychomycosis (fungal nail infection), nail matrix nevus, or melanoma. It is recommended that patients seek timely medical attention at a hospital and receive appropriate treatment based on the diagnosis.
The little toe nail usually refers to the nail of the smallest toe. In general, black discoloration of the little toe nail may be caused by trauma, malnutrition, onychomycosis, or other reasons. Specific analyses are as follows:
1. Trauma
If the little toe nail suffers trauma, local capillaries may rupture and cause blood stagnation, which can lead to blackening of the nail. This may also be accompanied by symptoms such as pain and swelling. Minor blood accumulation is usually absorbed naturally over time.
2. Malnutrition
Poor eating habits such as picky eating may lead to malnutrition, affecting the metabolism of the little toe nail and resulting in calcium deposition or pigmentation, causing the nail to darken. It's important to maintain a balanced diet and avoid unhealthy eating habits in daily life.
3. Onychomycosis
Onychomycosis is a condition caused by fungal infection of the nail plate or tissue beneath the nail. Common symptoms include cloudy nail appearance, thickening of the nail, and an uneven nail surface. It may also cause changes in the color of the little toe nail. Patients may use topical antifungal medications such as terbinafine hydrochloride gel or amorolfine hydrochloride solution as directed by a physician.
In addition, this symptom could also be caused by conditions such as nail nevus, melanoma, or diabetes. It is recommended that patients seek timely medical evaluation at a hospital.
