Hives (urticaria) themselves do not usually indicate cancer. The vast majority of hives are common skin reactions caused by allergies, infections, or stress, and there is no need to panic excessively. However, if accompanied by certain specific systemic symptoms, it is recommended to seek medical attention promptly for further investigation.
1. Common causes dominate: Urticaria is mostly caused by food or drug allergies, physical irritation or viral infection, and usually subsides in a short period of time. It is not clearly related to cancer.
2. Accompanying symptoms to be alert: If urticaria recurs for a long period of time and is accompanied by systemic symptoms such as unexplained weight loss, persistent fever, swollen lymph nodes, or night sweats, you should be vigilant.
3. Cancer-related cases are extremely rare: Some cancers may indirectly cause skin reactions by affecting the immune system, but this is a very rare occurrence and not a typical manifestation of urticaria.
We suggest you first observe the pattern of your hives flare-ups and record any possible triggers. If the rash recurs for more than six weeks, or is accompanied by other physical abnormalities mentioned above, please consult a dermatologist or general practitioner for a comprehensive evaluation. Avoiding scratching, wearing loose clothing, and reducing contact with known allergens can help relieve symptoms.
