Anal cancer actually includes two parts, one is cancer of the anal canal, and the other is cancer of the anus. Most of them are squamous cell carcinoma, and a few are basal cell carcinoma. Anal cancer is more common in women, and cancer around the anus is more common in men. The cause of anal cancer is currently unclear. It is considered to be related to perennial anal fistula irritation or anal condyloma acuminata or precancerous lesions such as anal leukoplakia. Anal cancer often manifests as discomfort in and around the anus, as well as perianal itching. Harder masses can be palpable around the anus and the anal canal. The growth of the mass will cause pain. During the growth process, ulcers will appear on the surface. The bottom of the ulcer will appear gray-white necrotic tissue, and a small amount of thin liquid will flow out. There is bloodshot and tenderness. Some people have less pain, and some people The pain is more obvious, often mistaken for anal fissure. ...
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