Thanks for posting your query at DoctorSpring
I can understand your concern.
A new or changing mole or blemish is the most common warning sign for melanoma. Variation in color and/or an increase in diameter, height, or asymmetry of borders of a pigmented lesion are to be observed.
Symptoms such as bleeding, itching, ulceration, and pain in a pigmented lesion are less common but warrant an evaluation.
ABCDE criteria for a changing mole, which are as follows:
Asymmetry: Half the lesion does not match the other half.
Border irregularity: The edges are ragged, notched, or blurred.
Color variegation: Pigmentation is not uniform and may display shades of tan, brown, or black; white, reddish, or blue discoloration is of particular concern
Diameter: A diameter greater than 6 mm is characteristic, although some melanomas may have smaller diameters; any growth in a nevus warrants an evaluation.
Evolving: Changes in the lesion over time are characteristic.
Lesions exhibiting these features should be considered potential melanoma.
I thought of giving you this information so you are aware of what change to expect.
Since there is a slight growth in the lesion,
I would recommend that you visit your dermatologist who would bee able to do a dermatoscopy for you, which is seeing the lesion with a probe to know how the lesion looks below the skin. That gives an idea as to whether mole is malignant or not. Its difficult to comment for sure only by looking at it.
In case the doctor sees any changes which warrant a biopsy for further investigation, he will do so and confirm the diagnosis.
please feel free to ask me in case you have any queries.