Is repeated skin allergy a sign of skin cancer?

Skin cancer is rare in my country and mostly occurs in Caucasians. However, this disease cannot be ignored, because it has a great impact on the human body and can cause death in severe cases. Therefore, patients need to pay more attention to their health status. Only by timely detection can timely treatment be carried out to reduce the damage caused by the disease to the body. So is repeated skin allergy skin cancer? Let me introduce the symptoms of skin cancer to you.

Diagnosis relies on biopsy, but requires the diagnostician to have sufficient experience to identify lesions suspected of malignancy. The following situations are highly suspicious of early malignant lesions:
1. Skin ulcers that do not heal for a long time or come and go or have a small amount of bleeding.
2. If the solar keratosis has bleeding, ulceration or asymmetric nodules,
3. When the skin or old scars that have been exposed to radiation in the past, or the sinus tracts have ulcers or nodules,
4. If red skin scars do not fade for a long time and show mild erosion, be alert to the possibility of carcinoma in situ.