What could be wrong if you have a 1-inch bump on your head that feels liquid-filled and other purplish dots around the head?

If you have a 1-inch bump on your head that feels liquid-filled and other purplish dots around the head, it is important to see a doctor as soon as possible. The bump and dots could be a sign of a serious medical condition, such as a blood clot, infection, or skin cancer.

1. Blood Clot (Cephalhematoma): A cephalhematoma is a collection of blood that forms under the scalp due to a broken blood vessel. It often appears as a raised, soft, and fluctuant lump on the head. Cephalhematomas are common in newborns, but they can also occur in adults due to head injuries.

2. Abscess: An abscess is a localized collection of pus that forms when bacteria infect tissue. It can occur anywhere in the body, including the scalp. Scalp abscesses can be caused by various factors, such as skin infections, hair follicle infections, or trauma to the head.

3. Cyst: A cyst is a sac-like structure filled with fluid or semi-solid material. It can develop anywhere on the body, including the scalp. Scalp cysts are usually benign and harmless but can sometimes cause discomfort or pain.

4. Insect Bite or Sting: Insect bites or stings can cause localized swelling, redness, and itching. If the bite or sting is infected, it may also develop a small, fluid-filled bump.

5. Skin Cancer: In rare cases, a bump on the head and purplish dots around it may indicate skin cancer. Melanoma, a type of skin cancer, can sometimes appear as a raised, dark-colored lesion on the skin.

It is crucial to seek medical attention if you notice a sudden appearance or changes in the bump on your head or the surrounding dots. The doctor can perform a physical examination and order necessary diagnostic tests, such as blood work, imaging studies, or a biopsy, to determine the cause and provide appropriate treatment.