Squamous cell carcinoma can be painful, but many people feel nothing at all. About 40% of patients with squamous cell carcinoma report pain at the time of diagnosis, while the rest notice only a visible change on their skin. Whether you experience pain depends largely on where the tumor is, how deep it has grown, and whether it has reached nearby nerves.
How Often SCC Causes Pain
A study from Wake Forest Baptist Medical Center found that 39.8% of squamous cell carcinoma (SCC) patients reported pain, compared to just 17.7% of patients with basal cell carcinoma (BCC), the other common form of skin cancer. Itching was actually the most frequently reported sensation in both cancers, affecting about 43.5% of SCC patients. But pain intensity stood out as a distinguishing feature. Researchers found that a patient’s pain score was a highly significant predictor of having SCC rather than BCC, meaning that a painful skin lesion is more likely to be squamous cell carcinoma than the less aggressive basal cell type.
The range of sensations people report is broad. Some feel tenderness when the spot is touched. Others describe stinging, burning, or a pins-and-needles feeling around the growth. Numbness is also possible, which can seem counterintuitive but makes sense once you understand how tumors interact with nerves.
Why Some Tumors Hurt and Others Don’t
Early, shallow SCCs often sit in the top layers of skin, where there are fewer nerve endings to irritate. These tumors may cause no sensation beyond mild tenderness or itching. Pain tends to appear, or intensify, as the cancer grows deeper into tissue and encounters nerve fibers.
The key mechanism behind SCC-related pain is something called perineural invasion, where tumor cells grow into or along the sheath surrounding a nerve. This causes two things simultaneously: the nerve gets physically compressed by the growing tumor, and it gets bathed in inflammatory chemicals released by the cancer and surrounding tissue. Those chemicals activate pain receptors on nerve fibers, making them hypersensitive to pressure, temperature, and touch. The result can range from a dull ache to sharp, shooting pain, depending on which nerves are involved.
Perineural invasion also explains the numbness and tingling some people feel. When a nerve is damaged by tumor growth, it may send confused signals or stop sending signals altogether in certain areas. If you notice a patch of skin near a lesion that feels numb or “different,” that’s worth mentioning to your dermatologist.
Pain as a Warning Sign
Pain that starts mild and gradually intensifies is a pattern worth paying attention to. The American Academy of Dermatology notes that pain or tenderness in an SCC lesion “may be mild at first and become more intense with time,” though in some cases it develops quickly. This progression typically signals that the tumor is growing deeper or broader.
Because pain intensity helps distinguish SCC from BCC, researchers have suggested that a simple pain assessment during a skin exam could lead to earlier, more appropriately aggressive treatment. If you have a skin lesion that has become painful, especially one that looks like a rough, scaly patch, an open sore that won’t heal, or a raised growth with a central depression, pain adds another reason to have it evaluated promptly. A painless lesion doesn’t mean it’s harmless, but a painful one raises the index of suspicion.
Pain After Treatment
The most common surgical treatment for SCC is Mohs surgery, where thin layers of tissue are removed and examined until no cancer cells remain. Most patients report mild to moderate pain afterward, and it typically fades over a few days. Over-the-counter pain relief with acetaminophen is usually enough to manage it.
Location and wound size matter. Patients who have Mohs surgery on the scalp, or whose wound is larger than about 3 square centimeters (roughly the size of a large postage stamp), tend to report more discomfort than those treated on other areas of the body. This makes sense given the scalp’s rich nerve supply and the tension in scalp skin during healing.
Managing Pain From Advanced SCC
In rare cases where SCC is advanced or has invaded deeply into nerves, the pain can become severe and difficult to control. This type of pain is neuropathic, meaning it originates from nerve damage rather than simple tissue injury. It often feels like burning, electric shocks, or deep aching that doesn’t respond well to standard pain relievers alone.
For neuropathic cancer pain, treatment typically involves a combination approach. Medications originally developed for seizures or depression can calm overactive nerve signals and reduce pain perception. When the pain is well-localized to a specific area, nerve blocks or even surgical procedures to cut the affected nerve can provide significant relief. One published case described a patient with invasive SCC whose severe arm pain was substantially reduced after the specific skin nerves transmitting the pain signals were surgically cut.
These advanced pain scenarios are uncommon. The vast majority of SCCs are caught early, treated with outpatient surgery, and cause only temporary discomfort during recovery. The key variable is timing: the earlier an SCC is identified and removed, the less likely it is to reach the depth where significant pain and nerve involvement become a concern.