Dry Skin (Xerosis): This is a common condition that can cause itching, and when scratched, the dry skin can bleed easily due to its fragility and the lack of moisture, leading to bruising or blood.

Eczema (Atopic Dermatitis): A chronic skin condition characterized by itchy, inflamed skin. Scratching can lead to skin breakdown, bleeding, and bruising.
Psoriasis: An autoimmune condition that speeds up the life cycle of skin cells, causing cells to build up rapidly on the surface of the skin. The lesions can be itchy, and scratching them can lead to bleeding and bruising.
Insect Bites: Certain insect bites can cause significant itching, and scratching these areas can lead to bruising or bleeding, especially if the skin is broken.

Leukemia: Although rare, leukemia can cause easy bruising and bleeding due to bone marrow suppression affecting platelet production. Itching (pruritus) can sometimes be a symptom, especially in more advanced cases.
Liver Disease: Conditions like cirrhosis can lead to coagulopathy, resulting in easy bruising and bleeding. Pruritus can be associated with liver diseases, such as primary biliary cirrhosis.
Thyroid Disorders: Both hyperthyroidism and hypothyroidism can cause skin changes and itching. Easy bruising can be seen in these conditions due to various metabolic and hormonal imbalances.

Mastocytosis: A condition characterized by an accumulation of mast cells in one or more organs. It can cause skin lesions that are itchy, and when scratched, these lesions can bleed.
Amyloidosis: A group of diseases that result from the abnormal accumulation of amyloid proteins in various tissues. It can cause skin changes, including easy bruising and itching.
Scurvy: A disease resulting from vitamin C deficiency, which can cause bleeding gums, joint pain, and poor wound healing. Itching and easy bruising can also be symptoms due to the role of vitamin C in collagen synthesis and blood vessel integrity.