Disease and health problems caused by smoking

• Cancers of the lung, throat, mouth, tongue, nose, nasal sinus, voice box, oesophagus, pancreas, stomach, liver, kidney, bladder, ureter, bowel, ovary, cervix, and bone marrow (myeloid leukaemia). Smoking related cancers accounted for nearly 21% of all cancer deaths in 2005.
• Heart disease. Around a third of all cases of heart disease in those under 65 years are due to smoking.
• Chronic obstructive pulmonary disease (COPD) includes chronic bronchitis, emphysema, and small airways disease. Emphysema is rare in non-smokers.
• Stroke. Smokers under 65 years old are around three times more likely to have a stroke than non-smokers of the same age.
• Peripheral vascular disease is a narrowing of the leg arteries that can lead to blockage and, in some cases, amputation. Cigarette smoking is the main risk factor for this disease. 
• Abdominal aortic aneurysm (AAA) is the bursting of the lower part of the aorta leading from the heart. It often leads to sudden death. Cigarette smoking is the main risk factor for this disease.
• Peptic ulcer disease in persons who are Helicobater pylori positive.
• Eye diseases, such as macular degeneration and cataracts.
• Lower fertility in women.
• Low bone density in older women and hip fractures in both sexes.
• Periodontitis, a dental disease that affects the gum and bone that supports the teeth.
• Respiratory symptoms including shortness of breath, coughing, phlegm and wheezing. These symptoms occur in both child and adult smokers.
• Faster decline in lung function, which means smokers cannot breathe in as deeply, or breathe out as hard as they would if they didn't smoke.
• Impaired lung growth among child and adolescent smokers and early onset of lung function decline in late adolescence and early adulthood.
• Problems during pregnancy and childbirth including restricted foetal growth and low birth weight, complications that can lead to bleeding in pregnancy and the need for caesarean section delivery, and shortened time in the womb and preterm delivery (the baby is carried for less than 37 weeks). Smoking during pregnancy also causes death in early infancy (particularly from Sudden Infant Death Syndrome) and reduced lung function in infants.
• Childhood cancer (hepatoblastoma) where the father and/or mother smoked before and/or during pregnancy.
• Worsening asthma. Smokers with asthma have poorer asthma control, faster decline in lung function, more airway inflammation, and get less benefit from some asthma medications, compared to non-smokers with asthma.
• Complications during and after surgery, including delayed wound healing and increased risk of infection, drug interactions, lung complications and breathing difficulties.
• http://www.quit.org.au/resource-centre/fact-sheets/deaths-from-smoking