Blue-black or black spots on the heel

Introduction The heel ecchymosis is a cluster of blue-black or black spots. The stain is a common facial brown or melanin-precipitating, loss-prone skin disease caused by the increase of melanin in the skin. It is often found on the cheeks and forehead. It is aggravated after sun exposure. It is more common in women, and pregnancy, long-term oral contraception. The menstrual disorder of the medicine is related to the dark spots and liver spots of Chinese medicine, which may be the rupture of the superficial capillary of the dermis, the skin pigmentation changes caused by the excretion of hemoglobin through the epidermis and the stratum corneum, and may also be the thrombocytopenic purpura of adolescents. Some symptoms.

Cause

(1) Causes of the disease

The cause of the disease is unclear and is generally thought to be related to local friction or damage.

(two) pathogenesis

The pathogenesis is not very clear, it may be the rupture of the superficial capillary of the dermis, the skin pigmentation changes caused by the excretion of hemoglobin through the epidermis and stratum corneum, and may also be part of the symptoms of thrombocytopenic purpura in adolescents.

an examination

Related inspection

Skin color skin cancer detection

It is good for teenagers, especially for ball players. Occasionally on the back or sides of the heel on one or both sides, occasionally on the distal toe or toe of the ankle, often occurs suddenly. The damage is cluster blue-black or black spots, the pressure does not fade, the realm is unclear, can be merged with each other, and there are no self-conscious symptoms, which can be accompanied by sweating.

According to the location of the lesion and its clinical and pathological features, it is generally easy to diagnose.

Differential diagnosis

Differential diagnosis of heel blue black or black spots:

The disease needs to be differentiated from malignant melanoma. The malignant melanoma is initially papular nodules, gradually enlarged and ulcerated, and the surface is black. Pathological examination shows most malignant melanoma cells with mitotic figures.

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