The flesh next to the nail is swollen and painful may be ingrown nails, nail groove inflammation, purulent dactylitis and other diseases. 1. ingrown nail: ingrown nail is also known as the nail plate side edge of the growth of the nearby soft tissue, as a foreign body inserted into the nail groove inside, the main symptom is the nail groove appears red, swollen, pain. 2. Nail groove inflammation: nail groove inflammation is caused by bacterial infection, the common symptom is localized painful erythema and edema, etc., may also be accompanied by nail microdermabrasion, nail bed damage, and nail plate surface abnormalities and other symptoms. 3. purulent dactylitis: purulent dactylitis is usually associated with bacterial infection after local trauma to the finger, the main symptom is localized pinprick pain, accompanied by tissue swelling and severe pain and other symptoms. The flesh next to the nail is swollen and painful and may be caused by other reasons, it is recommended to go to the regular hospital to clarify the cause of the disease, and follow the doctor’s instructions to adopt the appropriate treatment program, so as not to delay the condition.