When money is borrowed, interest is typically calculated as a percentage of the principal, the amount owed to the lender. The percentage of the principal that is paid over a certain period of time (typically a year) is called the interest rate. Interest rates are market prices which are determined by supply and demand.
Swollen nipples in dogs is a common symptom seen in mastitis. Mastitis occurs when there is an infection of the mammary glands. Mastitis is common in female dogs who are in the process of nursing. In mastitis, the dog's mammary glands become swollen and painful. The milk is toxic in affected nipples.
Swelling in the leg or arm from varicose veins or after surgery on veins or lymph nodes is a common risk factor for streptococcal cellulitis. Dog or cat bites or licking can cause severe cellulitis due to Pasteurella or Capnocytophagia, especially in diabetics or people with poor immune function or absence of the spleen (asplenia) or splenectomy, surgical removal of the spleen.