Specific risk factors in the developing world include cooking with open fires or on the floor as well as developmental disabilities in children and chronic diseases in adults. Thermal
In the United States, fire and hot liquids are the most common causes of burns. Of house fires that result in death, smoking causes 25% and heating devices cause 22%. Almost half of injuries are due to efforts to fight a fire. Scalding is caused by hot liquids or gases and most commonly occurs from exposure to hot drinks, high temperature tap water in baths or showers, hot cooking oil, or steam. Scald injuries are most common in children under the age of five and, in the United States and Australia, this population makes up about two-thirds of all burns. Contact with hot objects is the cause of about 20–30% of burns in children. Generally, scalds are first- or second-degree burns, but third-degree burns may also result, especially with prolonged contact. Fireworks are a common cause of burns during holiday seasons in many countries. This is a particular risk for adolescent males. In the United States, for non-fatal burn injuries, white males, aged <6 comprise most cases. Thermal burns from grabbing/touching and spilling/splashing were the most common type of burn and mechanism, while the bodily areas most impacted were hands and fingers followed by head/neck. Chemical
Chemical burns can be caused by over 25,000 substances, most of which are either a strong base (55%) or a strong acid (26%). Most chemical burn deaths are secondary to  ingestion.
In addition, infants who are given cows milk too early can develop anemia due to gastrointestinal blood loss.Children who are at risk for iron-deficiency anemia include:
Preterm infants
Low birth weight infants
Infants fed with cows milk under 12 months of age
Breastfed infants who have not received iron supplementation after age 6 months, or those receiving non-iron-fortified formulas
Children between the ages of 1 to 5 years old who receive more than 24 ounces (700 mL) of cow milk per day
Children with low socioeconomic status
Children with special health care needs
Children of Hispanic ethnicity
Children who are overweight

Blood donation
Frequent blood donors are also at risk for developing iron deficiency anemia. When whole blood is donated, approximately 200 mg of iron is also lost from the body. The blood bank screens people for anemia before drawing blood for donation. If the patient has anemia, blood is not drawn. Less iron is lost if the person is donating platelets or white blood cells. Hepcidin
Decreased levels of serum and urine hepcidin are early indicators of iron deficiency. Hepcidin concentrations are also connected to the complex relationship between malaria and iron deficiency. Mechanism
Anemia can result from significant iron deficiency. When the body has sufficient iron to meet its needs (functional iron), the remainder is stored for later use in cells, mostly in the bone marrow and liver. These stores are called ferritin complexes and are part of the human (and other animals) iron metabolism systems.