Keratosis pilaris is a common condition characterized by numerous small, tightly packed dry bumps or raised areas on the skin, typically on the upper arms. The bumps occur due to a buildup of dead skin cells in the hair follicle's opening. These surface skin cells stick together more easily than normal, causing the bumps.
Anyone can have keratosis pilaris, but it is most common during adolescence and early adulthood. It is less common in older individuals and children. Sun exposure, heat, and summer may improve the condition to some extent.
The bumps are 1-2 millimeters in size and tightly packed together. They can be red, brown, or white and feel dry. The affected skin may feel rough, resembling sandpaper. Some individuals may experience mild itch. The most common area affected is the outer surface of the upper arms, but it can also occur on the thighs, buttocks, cheeks, forearms, and upper back. In some cases, it can appear on the cheeks, neck, and eyebrows. The condition is symmetrical on both sides of the body.
It is generally not necessary to see a dermatologist unless the condition causes significant discomfort or there is uncertainty about the diagnosis.
Sometimes, infection of the hair follicles (folliculitis) or acne can resemble the bumps. Eczema may also appear similar but tends to be itchier. Heat rash can resemble keratosis pilaris, but it is more common in extreme sweating and heat exposure.
There is no definitive cure for keratosis pilaris. However, there are measures that can help improve the condition, including:
While these treatments may improve the appearance of keratosis pilaris, they do not provide a permanent solution. Regular maintenance and consistent skincare practices are necessary to manage the condition.
