Cancer and family history
Melanoma in the family: which details matter for a conversation?
My mother had melanoma: should I be thinking about genes? Before attaching a gene name to that question, it helps to know what type of melanoma was diagnosed and what the family history actually contains.
A single remembered diagnosis is not enough to identify an inherited syndrome. This guide focuses on the details to confirm and the questions to bring, so that an online search does not turn uncertainty into a supposed result.
Skin melanoma and eye melanoma are different
Cutaneous melanoma begins in the skin. Uveal melanoma begins in structures inside the eye and needs a different clinical context.
Other skin cancers and unusual moles should not be relabelled melanoma. If you are unsure, write the words you were told and ask whether the treating team can clarify the original diagnosis.
Clarify what multiple means
Different new primary melanomas are not the same as one melanoma that has spread or returned. A professional may also need to know whether a lesion was invasive. Do not count every operation or treatment as another cancer.
Keep a separate line for each confirmed diagnosis and mark uncertain entries. If there were other cancers in the family, use their original names. An unspecified second cancer does not establish a particular inherited melanoma pattern.
Why this guide does not assign melanoma genes
Specialists assess specific melanoma patterns, including repeated primaries and certain combinations with other cancers, for inherited susceptibility. They need original clinical information to assess those patterns.
Genidi does not provide a general melanoma gene list from a single diagnosis, age alone or an unclear report. Its guided educational summary uses additional pattern questions before showing limited discussion terms; those terms still do not diagnose a variant or recommend a test.
Separate family questions from a current skin concern
If a mole changes or a new skin finding worries you, arrange medical assessment rather than waiting for a family-history explanation. A hereditary-cancer conversation and examination of a current lesion answer different questions.
For a non-urgent family discussion, you could ask: what do you need to know about my parent's melanoma before advising me? Ask who should advise you on skin care and whether the confirmed family details warrant a genetics conversation. This article sets no examination interval.
A result used in melanoma treatment is not automatically an inherited finding. Let the treating or genetics team explain the type of test and what, if anything, relatives should understand from it.
What to prepare for the conversation
- Clarify cutaneous, uveal or another diagnosis.
- Distinguish new primary melanomas from spread or recurrence.
- Ask whether the relevant diagnoses and invasive status can be confirmed.
- Record other family cancers by their original names, without inferring a syndrome.
- Take current skin concerns directly to a healthcare professional.
Common questions
Why do I not get a gene list from one melanoma?
A gene list could suggest a connection that the known facts do not support. Confirming the subtype and family pattern comes before specific inherited-gene discussion.
Does eye melanoma mean the same as skin melanoma?
No. Uveal and cutaneous melanoma have distinct clinical contexts. Use the exact diagnosis when asking about the family history.
Can a tumour mutation tell my children they inherited it?
No. A tumour finding alone does not confirm inheritance. A qualified professional must explain whether it needs separate germline evaluation and what the family implications are.
Sources and editorial review
Sources checked on 5 September 2026. Educational content prepared by Genidi; not yet reviewed by an independent clinician.