The yellow flesh in the hole left after the wound is cleaned up is usually unhealthy granulation tissue, purulent secretion, etc. 1. Unhealthy granulation tissue: unhealthy granulation tissue is generally caused by repeated stimulation of the wound due to the proliferation of granulation, usually due to foreign bodies, insufficient blood supply, etc., the patient may bleed, pustules and other symptoms. 2. Purulent discharge: Purulent discharge is usually caused by bacterial infection, which will lead to inflammation of the tissue to form pustules, and the pus flows out from the wound, resulting in yellowing of the newborn granulation. Patients should identify the cause of the disease under the guidance of the doctor, actively cooperate with the treatment, and conduct regular review.