The female orange cat's lack of weight may be caused by parasites in the body and an unhealthy diet. It is recommended that the owner first deworms the female orange cat internally and externally, and then adjusts the female orange cat's diet and chooses nutritionally balanced cat food as staple food. , usually give the female orange cat some nutritious food such as meat, eggs, canned food, etc. to help the body replenish energy, so that the female orange cat can gain weight.