Melanoma is one of the gravest kinds of skin cancer, which starts in the melanocytes that produce melanin, i.e., the pigment is responsible for our skin color. Beyond the face, this skin cancer may also develop in the eyes. In a few rare cases, it grows inside the body too. There are different types of melanoma. Let us study the different types and signs of melanoma.

1. Types of Melanoma
There are four different types of melanoma. Let us address them one by one.

• Superficial Spreading Melanoma
  It is the most prevalent type of melanoma, and it is usually seen on the limbs or the trunks. In this kind of melanoma, the cells grow gradually and then spread across the skin’s surface.
• Nodular Melanoma
  It is the second key form of melanoma and is usually visible on the neck, head, or trunk. Nodular melanoma spread faster than other melanoma types and may also appear blue-black or reddish in color. These are the most aggressive kinds of melanoma.
• Lentigo Maligna Melanoma
  It is the less prevalent kind of melanoma and is usually found in adults. This melanoma develops in the body parts, which receive maximum skin exposure (such as the face) over the years. This kind of melanoma begins as a Hutchinson’s freckle and appears as a stain on the skin. The lentigo maligna is not as severe as the other kinds of melanoma.
• Acral Lentiginous Melanoma
  This is a rare form of melanoma and appears on the soles of feet, palms of hands, as well as underneath the nails.

Since darker-hued people do not get any other kind of melanoma, these are the most prevalent types of melanoma.

2. Signs of Melanoma
The alphabet’s first five letters are your guide to understand the melanoma warning signs.

• A
  “A” stands for asymmetry; in most cases, the melanoma is asymmetrical. So, when you draw a line through the lesion’s middle, the two halves do not match. Hence, it will look different from an oval to a round shape or the usual symmetrical mole.
• B
  “B” stands for border; melanoma is usually uneven and has notched or scalloped edges, whereas the usual moles will have even borders.
• C
  “C” stands for color; the presence of multiple colors is an alarming melanoma symptom. The benign moles are mostly brown-hued. The melanoma moles may have different hues of black, tan, or brown. Moreover, when it grows larger, the moles may become blue, white, or red.
• D
  “D” stands for dark or diameter. Although you should try to detect the melanoma while it is still small, when the mole is about 6 mm in diameter, it indicates a lesion. Experts suggest that you must look for lesions, regardless of the size. The amelanotic and rare melanomas are mostly hueless.
• E
  Lastly, “E” stands for evolving. When the mole continually changes its shape, color, or size or you experience growth of a particular spot on the skin, it may be a symptom of melanoma. Note that crusting, itching, or bleeding moles are also melanoma symptoms.

So, this is all about the  types and signs of melanoma.