What Should I Do if My Toenail Is Filled with Blood and Draining Yellow Fluid?

Congestion and yellow fluid discharge in toenails can be caused by trauma, paronychia, onychomycosis, and other reasons. Treatments include general therapy, medical treatment, surgical treatment, etc. The specific causes and treatment methods are as follows:

1. Trauma: Mainly caused by direct or indirect violence, it can lead to nail bed injury and congestion. Secondary infection can cause subungual pus and yellow fluid. Iodophor or hydrogen peroxide can be used for local disinfection, followed by oral cephalexin capsules, amoxicillin capsules, levofloxacin tablets, and other medications. Incision and drainage may also be necessary when necessary.

2. Paronychia: Mainly caused by pathogenic bacterial infection after minor trauma to the periungual tissue, it can cause inflammation in the surrounding tissue of the toenail, manifesting as pain, swelling, and suppuration. The pus may also drain from the paronychium. It can be alleviated by local irrigation with chlorhexidine acetate solution and treated through abscess drainage or nail extraction.

3. Onychomycosis: Mainly caused by dermatophytes invading the nail plate, it can damage the nail plate, manifesting as turbidity, thickening, atrophy, separation, uneven surface, and may also cause pain and subungual hemorrhage. Under the guidance of a doctor, local treatment can be performed using amorolfine hydrochloride lacquer, ciclopirox olamine cream, and other medications. Oral terbinafine hydrochloride tablets, itraconazole capsules, fluconazole capsules, and other medications can also be used.

In addition to the above reasons, it may also be caused by periungual verruca, which can be treated with methods such as laser and liquid nitrogen cryotherapy.