Will there be edema after mixed hemorrhoid operation? What about postoperative edema of mixed hemorrhoids?

What about postoperative edema of mixed hemorrhoids? "I'm worried that experts from Beijing Cikang Hospital will give you the answer. Can mixed hemorrhoid cause edema after operation? Internal anal sphincter is a part of rectal muscle ring. When there is high tension, the pressure in anal canal increases, which hinders the corresponding venous and lymphatic reflux of anal canal and rectum. Reflex spasm of latissimus dorsi after mixed hemorrhoid operation, increased pressure of anal canal, blocked the arteriovenous flow from latissimus dorsi to rectal submucosa and the inner layer of anal canal, and the corresponding lymphatic flow, thus causing the closing effect of latissimus dorsi in anus, which became one of the main causes of pain and edema of anal margin after mixed hemorrhoid operation. Anal margin edema, that is, anal canal and anal margin skin edema, congestion, swelling and pain, is a common complication after mixed hemorrhoid surgery. In hemorrhoids surgery's disease, the local tissue of anus is cut off, peeled off or sutured, so that the original venous and lymphatic circulation channels at the edge of the wound are destroyed, or the local inflammatory changes caused by poor postoperative drainage and wound infection can all cause local circulation disorder and increase the osmotic pressure of local vascular tissue of anus. Combined with the physiological characteristics of anus and hemorrhoids, it is easy to cause local anal edema, anal trauma and inflammatory stimulation lead to anal spasm, which will aggravate pain, hinder venous and lymphatic reflux and aggravate anal edema. In addition, early postoperative squatting or dry stool, fecal blockage and accumulation in the rectum, and oppression of local blood supply can all cause or aggravate edema. External hemorrhoid edema is easy to form new external hemorrhoids, which affects the surgical effect and brings mental burden to patients. What about postoperative edema in mixed workplaces? After mixed hemorrhoid operation, it can eliminate the pain and edema of anal margin and reduce the pressure in anal canal, but it can still resist the intra-abdominal pressure and maintain anal self-control The mechanism of radial incision and decompression of perianal skin at the edge of external hemorrhoid wound is to make the blood and lymph stagnated in anus quickly shunt and dredge due to the obstruction of circulation channel, thus reducing the osmotic pressure of local tissues and blood vessels, which is conducive to the re-establishment of new circulation channel, reducing or eliminating local stagnation and accumulation, and alleviating or eliminating edema.