Irritable Bowel Syndrome (IBS): This condition is characterized by abdominal bloating, discomfort, and alterations in bowel habits. While pruritis is not a primary symptom, some patients with IBS may experience it due to associated conditions like atopic diseases or the use of certain medications. The combination of bloating and pruritis could be seen in IBS, especially if there are other atopic manifestations.

Inflammatory Bowel Disease (IBD): Conditions like Crohn's disease and ulcerative colitis can cause abdominal bloating due to inflammation and altered bowel habits. Pruritis can occur due to the systemic nature of the disease, liver involvement (e.g., primary sclerosing cholangitis), or as a side effect of medications.
Gastroesophageal Reflux Disease (GERD): While primarily causing heartburn and regurgitation, GERD can lead to bloating. Pruritis is less common but can be associated with GERD through mechanisms like atopic diseases or medication side effects.
Hepatic Disorders: Liver diseases such as primary biliary cholangitis can cause pruritis due to the accumulation of bile salts in the skin. Bloating can occur due to associated conditions like SIBO (small intestine bacterial overgrowth) or as a side effect of medications.

Obstructive Jaundice: Conditions causing obstructive jaundice, such as pancreatic cancer or bile duct obstruction, can lead to severe pruritis due to the buildup of bile salts. Bloating can occur due to associated conditions like pancreatitis or as a result of the obstruction itself.
Lymphoma: Certain types of lymphoma, particularly those involving the gastrointestinal tract or liver, can cause both bloating (due to masses or obstruction) and pruritis (as a paraneoplastic syndrome).
Thyroid Disorders: Both hyperthyroidism and hypothyroidism can cause gastrointestinal symptoms, including bloating. Pruritis can also be a symptom, particularly in hyperthyroidism.

Eosinophilic Gastroenteritis: A rare condition characterized by eosinophilic infiltration of the gastrointestinal tract, leading to symptoms like abdominal bloating. Pruritis can occur, possibly due to the eosinophilic involvement or associated atopic diseases.
Mastocytosis: A disorder involving the accumulation of mast cells in various tissues, including the skin and gastrointestinal tract. It can cause both bloating (due to mast cell activation in the gut) and pruritis (due to skin involvement).
Celiac Disease: An autoimmune reaction to gluten, leading to small intestine inflammation. While bloating is a common symptom, pruritis can occur, particularly if there's associated dermatitis herpetiformis, a skin manifestation of celiac disease.