Tiny blisters are often the result of pinched tissues in the underlying layer of skin, resulting in tiny red bumps appearing above the skin in the affected location. There are many other causes of tiny blisters, such as inflammation occurring within the body and an allergic response to certain medications, foods or substances in the environment. A repeated force against the skin can also cause tiny blisters in certain areas, such as the fingers if using a pen or pencil in an incorrect way. If these tiny blisters do not clear up on their own within a short period of time, it is wise to seek medical advice.
Blisters that occur underneath as well as over the skin, might be due to the pinching of underlying tissues of the skin, which can produce these tiny raised bumps. Seeking medical advice is wise if tiny blisters cover a large area of the skin, to make sure the underlying tissues can heal properly. It isn't uncommon for the skin to produce blisters when the body is immobile in the same position for a long period of time. This can be from sitting in a chair for many hours or from being on bed rest for a period of days or weeks.
Itchy blisters can occur on different places on the skin due to an allergic reaction to a certain food, drug or substance that an individual can come in contact with in the environment. Sometimes tiny blisters may be produced due to inflammation within the body, which is caused by numerous factors. Medication and diet can both cause a certain degree of inflammation within the body, depending on the individual and his or her specific state of health. Inflammation may be the first sign that the skin is attempting to heal itself, and blisters may clear up on their own.
Repeated aggravation to certain areas of the body may produce blisters and a slight level of inflammation within the underlying tissues. Using a pencil or a pen incorrectly, or for long periods of time, can result in writing blisters on the sides of the fingers and hands. Unexplained tiny red blisters that are not connected to any known event should be examined by a physician. Blisters that occur on their own may be the result of some type of infection or viral disorder in some individuals.