Black fish, also known as snakehead and raw fish, is rich in high-quality protein, zinc and essential amino acids, which can provide nutrients for wound recovery and promote wound healing. In addition, black fish can be used as medicine in the field of traditional Chinese medicine, which has the effect of nourishing the muscle and astringent sores, and can nourish and regulate, remove dampness and swelling, etc. It is one of the choices for postoperative tonic. In addition to the black fish soup, black fish can also be supplemented with other ingredients in the postoperative period, such as black fish soup with magnolia, black fish soup with mushrooms, etc.: 1. Black fish soup: black fish can be cleaned after removing the scales and internal organs, and seasoned with water, wine, salt and other seasoning products, simmered over low heat, and when the soup turns white, the fish can be eaten with the soup. Not only help post-operative recovery, but also has the effect of promoting milk, so it should be noted that if the patient has lactation stagnation, it is not recommended to take this soup; 2, yucca black fish soup: yucca, black fish added to the pot, through the salt, yellow wine, monosodium glutamate, pepper, scallions, ginger slices, etc. for seasoning, low fire simmering and then eat. It helps to nourish the heart and yin, remove dampness and detoxification as well as post-operative body conditioning; 3. Mushroom and black fish soup: mushrooms, black fish meat, carrot slices, ginger slices, cooking wine, Sichuan salt, chicken essence, etc. are processed and added to the pot for stewing, which can help to nourish the spleen and benefit the qi as well as the patient’s post-operative recovery when consumed after surgery. However, it should be noted that the efficacy of herbal ingredients is more complex, so it is recommended to consult a doctor or improve the ratio of ingredients under the guidance of a doctor before consumption. In addition, black fish soup is a high purine food and is not recommended for patients with hyperuricemia, as it can easily aggravate the condition or even trigger a gout attack.