The distribution of blood vessels, lymph and nerves in the anal area is quite rich, and the physiological function has certain specificity, so the patients are prone to oedema, pain, anal stenosis and other sequelae after the operation.
1. Edema: mainly due to postoperative anal tissue damage, the formation of local microcirculation disorders, i.e., blood, lymphatic reflux obstruction, tissue fluid retention in the tissue space too much formation of edema, blood reflux obstruction formation of stasis, further aggravate edema.
2. Pain: on the one hand, surgical cutting damage to perianal nerves, blood vessels, easy to form inflammation, stimulation of trauma, patients with severe pain; on the other hand, postoperative trauma tissue edema, sphincter spasm, aggravate pain.
3. Anal stenosis: For patients with serious condition or with trauma infection, there will be obvious scarring after surgery, which will eventually cause anal stenosis, affecting defecation and so on.
It is recommended that patients do a good job of postoperative care and maintenance, and if there are any symptoms of discomfort, they should communicate with the doctor or follow up in a timely manner, and under the guidance of the doctor to improve the treatment.