What kind of health issues can result from a deficiency of vitamin B2?

A deficiency of vitamin B2, also known as riboflavin, can indeed lead to skin issues. The vitamin is essential for maintaining healthy skin, eyes, and nervous system function. When levels of riboflavin are insufficient, the body may experience symptoms such as cracked lips, sore throat, inflammation of the lining of the mouth and tongue, and skin disorders like seborrheic dermatitis. These conditions can manifest as rashes or infections on the skin.

The other options provided do not directly relate to vitamin B2 deficiency. Loss of appetite can be attributed to various factors, but it is not a specific symptom of riboflavin deficiency. Excessive bleeding is more commonly linked to deficiencies in vitamins such as K or C, and rickets is primarily a result of vitamin D deficiency affecting bone health. Thus, the health issues stemming from a lack of vitamin B2 are closely aligned with skin health.