Rectal skin cancer: what to know

People may use this phrase for a change on the skin around the anus, a growth in the anal canal, or cancer arising higher in the rectum. Possible signs include a sore that does not heal, a new lump, thickening, itching, pain, discharge, bleeding, or a change in bowel control. Haemorrhoids, fissures, dermatitis, infections, and benign growths can produce similar findings. The appearance alone cannot determine whether a lesion is cancerous. A clinician may inspect the area, examine the anal canal and rectum, and arrange a biopsy when needed.

Arrange an appointment for a new or changing lump, sore, ulcer, bleeding spot, or rash that persists or returns. Avoid repeatedly applying steroid, antifungal, or other creams without knowing the cause, because this can change the appearance and delay diagnosis. Bring a list of treatments already tried and describe pain, discharge, bleeding, bowel changes, and duration. If testing identifies cancer, the plan depends on the exact site and cell type and may include surgery, radiotherapy, or chemotherapy before surgery.

Seek urgent care for uncontrolled bleeding, severe pain with fever, rapidly increasing swelling, inability to pass stool or urine, or faintness. Prompt assessment is also needed for a wound with spreading redness or pus. These signs may indicate significant bleeding, infection, or obstruction and are not suitable for self-treatment.

Is the change on the skin, in the anal canal, or in the rectum? Could a biopsy identify its cause? Which creams or treatments should I stop or continue? What symptoms require urgent review? If cancer is confirmed, which specialists and treatments will be involved?