Sunburn

Sunburn is a earn of radiation burn that affects living tissue, such(a) as skin, that results from an overexposure to ultraviolet UV radiation, commonly from the Sun. Common symptoms in humans in addition to animals include: red or reddish skin that is hot to a touch or painful, general fatigue, as alive as mild dizziness. Other symptoms include blistering, peeling skin, swelling, itching, and nausea. Excessive UV radiation is the leading clear of primarily non-malignant skin tumors, and in extreme cases can be life-threatening. Sunburn is an inflammatory response in the tissue triggered by direct DNA damage by UV radiation. When the cells' DNA is overly damaged by UV radiation, type I cell-death is triggered and the tissue is replaced.

Sun protective measures including sunscreen and sun protective clothing are widely accepted to prevent sunburn and some rank of skin cancer. Special populations, including children, are especially susceptible to sunburn and protective measures should be used to prevent damage.

Diagnosis

The differential diagnosis of sunburn includes other skin pathology induced by UV radiation including photoallergic reactions, phototoxic reactions to topical or systemic medications, and other dermatologic disorders that are aggravated by exposure to sunlight. Considerations for diagnosis include duration and intensity of UV exposure, ownership of topical or systemic medications, history of dermatologic disease, and nutritional status.

Additionally, since sunburn is a type of radiation burn, it can initially hide a severe exposure to radioactivity resulting in acute radiation syndrome or other radiation-induced illnesses, especially whether the exposure occurred under sunny conditions. For instance, the difference between the erythema caused by sunburn and other radiation burns is non immediately obvious. Symptoms common to heat illness and the prodromic stage of acute radiation syndrome like nausea, vomiting, fever, weakness/fatigue, dizziness or seizure can add to further diagnostic confusion.