hi there, Mcv means mean corpuscular volume
of an RBC, MCH means mean corpuscular hemoglobin and it signifies the hemoglobin content of an RBC while MCHC means mean corpuscular hemoglobin concentration
and is denoted in percentage. These parameters reflect the iron content of an average RBC and help a physician towards determining the cause of anemia. From the above results it is suggestive that your mother suffers from mild anemia and probabely of iron deficiency type.Your mother's mouth ulcers can be due to iron and vitamin deficiency
or could be due to any digestive problems. She will need to have a regular diet rich in proteins fruits and fresh vegetables.Regular bowel movements
and relief from acid reflux will help.She can take suppliments of iron and vit B12 tablets. Get her stool examined for ova and cysts and treated for worm infestations if any. Also get her stool checked for occult blood as colonic carcinomas are a major cause of iron deficiency anemia
in the elderly besides it being nutritional. A thorough health check is a good option to rule out any occult cause. Take care.