What is left big toe headache?

The left big toe shows pain, mostly due to the following reasons: 1, onychia, is the most common one. Normal is when cutting nails accidentally some skin lesions, or accidentally kick to the toe after causing local skin damage, so the bacteria near the nail invaded the wound and caused soft tissue infection. This condition normally shows redness, swelling and pain in one nail groove. In severe cases, it may also show purulent secretions or the formation of inflammatory granuloma. 2. It may be onychomycosis combined with paronychia. In addition to the above symptoms of paronychia, this condition also shows symptoms of onychomycosis, such as gray nails, deformed nails and local symptoms of itching in addition to pain. 3. Unexplained bacterial infection of the toes. Normally, the whole toe will show redness, swelling, heat and pain. In serious cases, it will also show purulent infection and show local fluctuation feeling.