What should you know about melanoma on calf?

A calf melanoma can begin in an existing mole or appear as a new mark. Look for a spot that becomes asymmetric, develops an uneven edge, shows several colours, grows, or changes in a way that stands out from your other marks. It may itch, bleed, crust, or remain symptom-free. A suspicious appearance does not confirm cancer; benign moles and other lesions can look unusual too.

A dermatologist may examine the whole skin surface and nearby lymph-node areas. If the lesion warrants testing, a biopsy allows a laboratory to assess the cells and the depth and features that guide staging.

Arrange a dermatology appointment promptly and describe when the mark changed, whether it has bled or healed, and any earlier photographs. Do not scrape, burn, or repeatedly pick at it. Bring a list of medicines and details of previous skin cancers. If melanoma is confirmed, care may include Surgical Excision, Skin Cancer Surgery, or a Sentinel Lymph Node Biopsy, depending on the findings. Read more about Melanoma for general background.

Seek a prompt assessment for a rapidly changing, bleeding, ulcerated, very dark, or noticeably different calf mark. Arrange earlier review if a wound does not heal, a firm lump appears nearby, or you notice swelling in the groin. New neurological symptoms or unexplained persistent symptoms after a melanoma diagnosis need urgent medical advice.

Ask whether the lesion needs biopsy, what the pathology report shows, whether margins are clear after removal, and whether lymph-node assessment is appropriate. You can also ask how often the scar and remaining skin should be checked and which symptoms should trigger an earlier visit.