• evaluation of the quality of life of patients before and after laparoscopic surgery for rectal cancer and cancer of the right part of the intestine at different stages of the disease, whether it depends on the size of the tumor, neoadjuvant treatment, type of cancer and its location
• Multidimensional assessment of perceived social support (considering three sources of support: significant person, family and friends) of patients before and after laparoscopic surgery for rectal cancer and cancer of the right part of the intestine, whether it depends on the stage of the disease, the location of the tumor lesion and the treatment undertaken

Specific scientific objectives:

• To evaluate the quality of life of patients before and after laparoscopic surgery for rectal cancer and right-sided colon cancer at different stages of disease, whether it depends on tumor size, neoadjuvant treatment, type of cancer and its location
• Multidimensional evaluation of perceived social support (considering three sources of support: significant person, family and friends) of patients before and after laparoscopic surgery for rectal cancer and cancer of the right part of the intestine, whether it depends on the stage of the disease, the location of the tumor lesion and the treatment undertaken

Scientific (research) problems:

• What is the quality of life of patients before surgery, and what is the quality of life after laparoscopic surgery for rectal cancer and cancer of the right side of the intestine at different stages of oncological disease? Does quality of life depend on the size of the tumor, location, advancement or type of treatment undertaken?
• How do patients rate the received social support both before and after laparoscopic surgery for rectal cancer and right colon cancer ?
• Did the obtained social support in the patient at each stage of the disease ( before surgery, after surgery) depend on the advancement of the oncological lesion, the location of the tumor lesion and the treatment undertaken ? 2 Methodology of the study The study will be carried out at the General Surgery Clinical Department of the John Grande Hospital of the Order of St. John of God in Krakow after obtaining permission from the facility's management.

Each patient qualified for laparoscopic surgery for rectal cancer and cancer of the right side of the intestine who simultaneously agreed to participate in the study anonymously was included in the study group.

Inclusion criteria for the study:

• clinical diagnosis of rectal cancer and right colon cancer
• laparoscopic surgery

Study exclusion criteria:

- surgery by traditional method

Each patient who is admitted to the surgical ward with a diagnosis of rectal cancer and cancer of the right side of the intestine and is qualified for laparoscopic surgery will receive written consent for the study and the processing of personal data, as well as information for the researcher with questionnaires, and then if he or she agrees in writing will be recruited for the study. The patient's personal data processing information will be retained for the study until its completion.