The peritoneum is the thin layer of tissue that lines the abdomen and specific other internal organs. Peritoneum cancer is a rare, aggressive cancer affecting these tissues. It accounts for approximately 10-20% of mesothelioma cancers. While the condition usually affects older adults, especially those over 60, anyone can get diagnosed. Asbestos exposure and genetic predisposition are common risk factors. Those who are at risk should watch for these nine signs of peritoneal cancer:

Abdominal pain
Stomach pain is among the most common symptoms of peritoneal cancer. It often arises as a dull and persistent ache in the abdominal region. The pain can come and go or be continuous.

Ascites
The abdominal cavity of some individuals might swell up because of fluid accumulation (also known as ascites). It is a hallmark symptom of peritoneal and some other cancers. The additional fluid build-up can make the belly region puffy, causing pain, discomfort, and difficulty breathing.

Loss of appetite
As the condition progresses, a person may not feel like eating. It happens because the cancer cells give rise to metabolic changes. As time passes, the individual’s fitness levels may also drop. The changes are often unintentional and can even occur when people stick to their usual eating or lifestyle habits.

Nausea and vomiting
Nausea and vomiting are primary peritoneal cancer symptoms. Individuals may experience repeated bouts of nausea and vomiting owing to ascites, abdominal distention, and bowel obstruction. If someone experiences the symptom repeatedly, they should go to a doctor and speak to them about it. If the patient experiences other symptoms in combination with nausea, there can be a need for prompt diagnosis and treatment.

Changes in bowel movements
Changes in bowel movements and urination patterns are also common peritoneal cancer signs and symptoms. The individual might experience constipation, diarrhea, or an alternating combination of the two. One may also suffer from bloating and cramping and have a sense of incomplete bowel evacuation. Changes in the urinary pattern may include higher frequency, difficulty urinating, or increased urgency. In some cases, blood may be present in the urine.

Pelvic or abdominal mass
One of the symptoms of mesothelioma in the stomach is a palpable mass in the abdominal region. Sometimes, the lump might even be felt in the pelvic area. It may cause the patient to feel pressure, discomfort, fullness, and constant uneasiness. If this happens, one should seek further investigation and a timely diagnosis to determine the underlying cause of the lump.

Gastrointestinal bleeding
The list of notable peritoneal mesothelioma symptoms also includes gastrointestinal bleeding. Patients may observe blood when defecating or may pass black or tarry stools. The condition is also known as melena. Patients with advanced stages of peritoneal cancer are likelier to have gastrointestinal bleeding. The symptom indicates that the cancer has affected the patient’s bowels or the rectum. It is crucial to speak to a doctor as soon as possible when this happens, as prompt evaluation and medical attention can help one manage their condition better.

Unexplained fatigue
Like most other cancers, peritoneal cancer can cause fatigue. The problem may persist even after sleeping and resting well. It can prevent people from performing their day-to-day tasks and lower their quality of life. If someone experiences prolonged fatigue, they should let a doctor know. An expert’s evaluation is critical for managing and treating any underlying cause.

Jaundice
If a person’s skin and eyes (the white area) start turning yellow, it points toward jaundice. Sometimes, jaundice can be a symptom of a bigger problem in the body. Patients with peritoneal cancer may develop this condition when the cancer makes its way to the liver or bile ducts. Other signs, such as pale stools, dark urine, abdominal pain, and itching, may accompany the yellow skin and eyes. Patients must not delay their treatment or diagnosis of jaundice and see a doctor immediately. The earlier the cause of jaundice is found, the sooner it can be treated so that patients can return to their lives.

In addition to the above, peritoneal cancer can present some generalized symptoms. These include fever, malaise, night sweats, and increased inflammation. One should visit a healthcare professional if these problems persist.