What is the purpose of a drain in post-operative care?

The purpose of a drain in post-operative care is to remove fluid or blood from the surgical site to prevent accumulation. This is critical because, after surgery, the body can produce excess fluid or blood as part of the healing process. If this fluid accumulates, it can create pressure, increase the risk of infection, delay healing, and lead to other complications such as hematomas or seromas. By using a drain, healthcare providers facilitate the continuous removal of this fluid, thus promoting a more optimal healing environment and minimizing potential complications. This function is essential for ensuring the surgical site remains clear of excess fluids that could impede recovery.