RECTAL TUMOR IN DOG

Rectal tumors are usually seen as a rectal growth on the animal, and is common to find the disease in the lymph nodes.
Symptoms
The most common sign of anal gland cancer is a rectal mass or tumor. The tumors are often small in nature. In addition to the visible signs of a tumor, animals who are suffering from the disease may be constipated or have difficulty defecating, anorexia, polydipsia, and lethargic.

Causes
The disease is often associated with a hormone imbalance as it is often found in the anal area. It is also linked with hypercalcemia in the animal's body.
Treatment

The overall prognosis for the disease is poor, although surgery can improve the opportunity for recovery.

YOUR DOG'S SMELL SENSE

A dog's scent organ is about four times larger than a human's, and a dog's sense of smell is about 50-100 times more powerful than ours. Although all dogs have a powerful sense of smell, some breeds have a greater talent for sniffing e.g. Basset Hounds, Bloodhounds, and Beagles, which are considered 'scent hounds.' If you live with a scent hound, you know how difficult it is to get his mind focused on anything but odors.

A dog's brain is also specialized for identifying scents. The percentage of the dog's brain that is devoted to analyzing smells is actually 40 times larger than that of a human! It's been estimated that dogs can identify smells somewhere between 1,000 to 10,000 times better than nasally challenged humans can.

Its smell sense is so developed that it can detect the slightest environmental change. The dog can detect the change of character of other dogs or humans that surround them, just by detecting the slight increase or decrease of their hormonal levels and their sweat. This has nothing to do with a sixth sense: the dog can just detect certain signals that go unnoticed by humans.

Even so, tears of joy contain different substances than those of sadness or pain and dogs are able to tell the difference. The sense of smell of dogs enables them to follow the cent of a wild animal and locate it; track missing persons; search for people buried under decries or snow, follow the trace of a criminal or detect hidden drugs.